org.xwiki.rendering.RenderingException: Failed to execute renderer
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:292)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:272)
 at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.render(DefaultBlockAsyncRendererExecutor.java:154)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:869)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:831)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:818)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderNoException(InternalTemplateManager.java:773)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderNoException(InternalTemplateManager.java:765)
 at com.xpn.xwiki.internal.template.DefaultTemplateManager.renderNoException(DefaultTemplateManager.java:79)
 at com.xpn.xwiki.internal.template.DefaultTemplateManager.renderNoException(DefaultTemplateManager.java:73)
 at org.xwiki.template.script.TemplateScriptService.render(TemplateScriptService.java:54)
 at jdk.internal.reflect.GeneratedMethodAccessor273.invoke(Unknown Source)
 at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.base/java.lang.reflect.Method.invoke(Method.java:569)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:571)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:554)
 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:221)
 at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:368)
 at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:492)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
 at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:217)
 at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:331)
 at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:261)
 at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:304)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
 at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:190)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
 at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:190)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
 at org.apache.velocity.Template.merge(Template.java:358)
 at org.apache.velocity.Template.merge(Template.java:262)
 at org.xwiki.velocity.internal.InternalVelocityEngine.evaluate(InternalVelocityEngine.java:233)
 at com.xpn.xwiki.internal.template.VelocityTemplateEvaluator.evaluateContent(VelocityTemplateEvaluator.java:107)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:219)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.renderVelocity(TemplateAsyncRenderer.java:174)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:135)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:54)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.lambda$syncRender$0(DefaultAsyncRendererExecutor.java:289)
 at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:289)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:272)
 at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.render(DefaultBlockAsyncRendererExecutor.java:154)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:869)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:831)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:811)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:797)
 at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:91)
 at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:85)
 at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2552)
 at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:180)
 at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:651)
 at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:339)
 at com.xpn.xwiki.web.LegacyActionServlet.service(LegacyActionServlet.java:111)
 at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:197)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142)
 at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:123)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142)
 at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:71)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142)
 at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:57)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142)
 at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:66)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142)
 at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:135)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142)
 at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:240)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142)
 at org.xwiki.container.servlet.filters.internal.SafeRedirectFilter.doFilter(SafeRedirectFilter.java:106)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142)
 at org.xwiki.container.servlet.filters.internal.ResolveRelativeRedirectFilter.doFilter(ResolveRelativeRedirectFilter.java:129)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142)
 at org.xwiki.container.servlet.filters.internal.SourceURLResolverFilter.doFilter(SourceURLResolverFilter.java:177)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142)
 at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:120)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:164)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:88)
 at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:86)
 at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:782)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:71)
 at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:782)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:348)
 at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:413)
 at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:71)
 at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:1308)
 at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:2198)
 at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:74)
 at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:974)
 at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:492)
 at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:80)
 at java.base/java.lang.Thread.run(Thread.java:840)
Caused by: org.xwiki.rendering.RenderingException: Failed to evaluate template with id [environment:/skins/flamingo/code.vm]
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:221)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.renderVelocity(TemplateAsyncRenderer.java:174)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:135)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:54)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.lambda$syncRender$0(DefaultAsyncRendererExecutor.java:289)
 at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
 at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:289)
 ... 105 more
Caused by: org.xwiki.velocity.XWikiVelocityException: Failed to evaluate content with namespace [environment:/skins/flamingo/view.vm]
 at org.xwiki.velocity.internal.InternalVelocityEngine.evaluate(InternalVelocityEngine.java:235)
 at com.xpn.xwiki.internal.template.VelocityTemplateEvaluator.evaluateContent(VelocityTemplateEvaluator.java:107)
 at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:219)
 ... 111 more
Caused by: org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getRevisionInfo' in  class com.xpn.xwiki.api.Document threw exception com.xpn.xwiki.XWikiException: Error number 3212 in 3: Exception while loading archive 4.889.859.810.507.554.666 at environment:/skins/flamingo/code.vm[line 55, column 62]
 at org.apache.velocity.runtime.parser.node.ASTMethod.handleInvocationException(ASTMethod.java:308)
 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:235)
 at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:368)
 at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:704)
 at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:75)
 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:167)
 at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:368)
 at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:704)
 at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:75)
 at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:242)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
 at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:171)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
 at org.apache.velocity.Template.merge(Template.java:358)
 at org.apache.velocity.Template.merge(Template.java:262)
 at org.xwiki.velocity.internal.InternalVelocityEngine.evaluate(InternalVelocityEngine.java:233)
 ... 113 more
Caused by: com.xpn.xwiki.XWikiException: Error number 3212 in 3: Exception while loading archive 4.889.859.810.507.554.666
 at com.xpn.xwiki.store.XWikiHibernateVersioningStore.loadXWikiDocArchive(XWikiHibernateVersioningStore.java:212)
 at com.xpn.xwiki.store.XWikiHibernateVersioningStore.getXWikiDocumentArchiveFromDatabase(XWikiHibernateVersioningStore.java:183)
 at com.xpn.xwiki.store.XWikiHibernateVersioningStore.getXWikiDocumentArchive(XWikiHibernateVersioningStore.java:151)
 at com.xpn.xwiki.store.XWikiHibernateVersioningStore.getXWikiDocumentArchive(XWikiHibernateVersioningStore.java:143)
 at com.xpn.xwiki.doc.XWikiDocument.loadArchive(XWikiDocument.java:2704)
 at com.xpn.xwiki.doc.XWikiDocument.getDocumentArchive(XWikiDocument.java:2639)
 at com.xpn.xwiki.doc.XWikiDocument.getRevisionInfo(XWikiDocument.java:2847)
 at com.xpn.xwiki.api.Document.getRevisionInfo(Document.java:1571)
 at jdk.internal.reflect.GeneratedMethodAccessor631.invoke(Unknown Source)
 at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.base/java.lang.reflect.Method.invoke(Method.java:569)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:571)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:554)
 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:221)
 ... 127 more
Caused by: com.xpn.xwiki.XWikiException: Error number 0 in 3: Exception while hibernate execute
 at com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:860)
 at com.xpn.xwiki.store.XWikiHibernateBaseStore.executeRead(XWikiHibernateBaseStore.java:927)
 at com.xpn.xwiki.store.XWikiHibernateVersioningStore.loadRCSNodeInfo(XWikiHibernateVersioningStore.java:356)
 at com.xpn.xwiki.store.XWikiHibernateVersioningStore.loadXWikiDocArchive(XWikiHibernateVersioningStore.java:208)
 ... 140 more
Caused by: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection
 at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:154)
 at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1626)
 at org.hibernate.query.Query.getResultList(Query.java:165)
 at org.hibernate.query.criteria.internal.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:76)
 at com.xpn.xwiki.store.XWikiHibernateVersioningStore.lambda$loadRCSNodeInfo$4(XWikiHibernateVersioningStore.java:359)
 at com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:851)
 ... 143 more
Caused by: org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection
 at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:112)
 at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:37)
 at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113)
 at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99)
 at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:111)
 at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:138)
 at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.connection(StatementPreparerImpl.java:50)
 at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$5.doPrepare(StatementPreparerImpl.java:149)
 at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:176)
 at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:151)
 at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:2122)
 at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:2059)
 at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:2037)
 at org.hibernate.loader.Loader.doQuery(Loader.java:956)
 at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:357)
 at org.hibernate.loader.Loader.doList(Loader.java:2868)
 at org.hibernate.loader.Loader.doList(Loader.java:2850)
 at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2682)
 at org.hibernate.loader.Loader.list(Loader.java:2677)
 at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:540)
 at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:400)
 at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:218)
 at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1459)
 at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1649)
 at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1617)
 ... 147 more
Caused by: org.postgresql.util.PSQLException: Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
 at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:342)
 at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:54)
 at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:263)
 at org.postgresql.Driver.makeConnection(Driver.java:443)
 at org.postgresql.Driver.connect(Driver.java:297)
 at org.apache.commons.dbcp2.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:52)
 at org.apache.commons.dbcp2.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:481)
 at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:557)
 at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:299)
 at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:231)
 at org.apache.commons.dbcp2.PoolingDataSource.getConnection(PoolingDataSource.java:138)
 at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:723)
 at com.xpn.xwiki.store.DBCPConnectionProvider.getConnection(DBCPConnectionProvider.java:258)
 at org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:38)
 at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:108)
 ... 167 more
Caused by: java.net.ConnectException: Verbindungsaufbau abgelehnt
 at java.base/sun.nio.ch.Net.pollConnect(Native Method)
 at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:684)
 at java.base/sun.nio.ch.NioSocketImpl.timedFinishConnect(NioSocketImpl.java:547)
 at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:602)
 at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:327)
 at java.base/java.net.Socket.connect(Socket.java:633)
 at org.postgresql.core.PGStream.createSocket(PGStream.java:243)
 at org.postgresql.core.PGStream.<init>(PGStream.java:98)
 at org.postgresql.core.v3.ConnectionFactoryImpl.tryConnect(ConnectionFactoryImpl.java:132)
 at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:258)
 ... 181 more