2019-02-19 15:14:50,864 ERROR [sitemap.handled-errors] (http-nio-8080-exec-21;/www-ville/index.html) Unable to get or create a ribbon manager for ribbon specific components
	at <map:serialize type="xml"> - resource://org/ametys/workspaces/web/sitemap.xmap:120:44
	at <map:generate type="workspace"> - resource://org/ametys/workspaces/web/sitemap.xmap:117:64
	at <map:serialize type="xhtml"> - resource://org/ametys/workspaces/web/sitemap.xmap:288:47
	at <map:transform type="minimizer-back"> - resource://org/ametys/workspaces/web/sitemap.xmap:287:59
	at <map:transform type="i18n"> - resource://org/ametys/workspaces/web/sitemap.xmap:284:45
	at <map:transform type="xslt"> - resource://org/ametys/workspaces/web/sitemap.xmap:276:71
	at <map:transform type="i18n"> - resource://org/ametys/workspaces/web/sitemap.xmap:273:45
	at <map:mount> - resource://org/ametys/runtime/kernel/sitemap.xmap:182:109
org.apache.cocoon.ProcessingException: Unable to get or create a ribbon manager for ribbon specific components
	at <map:serialize type="xml"> - resource://org/ametys/workspaces/web/sitemap.xmap:120:44
	at <map:generate type="workspace"> - resource://org/ametys/workspaces/web/sitemap.xmap:117:64
	at <map:serialize type="xhtml"> - resource://org/ametys/workspaces/web/sitemap.xmap:288:47
	at <map:transform type="minimizer-back"> - resource://org/ametys/workspaces/web/sitemap.xmap:287:59
	at <map:transform type="i18n"> - resource://org/ametys/workspaces/web/sitemap.xmap:284:45
	at <map:transform type="xslt"> - resource://org/ametys/workspaces/web/sitemap.xmap:276:71
	at <map:transform type="i18n"> - resource://org/ametys/workspaces/web/sitemap.xmap:273:45
	at <map:mount> - resource://org/ametys/runtime/kernel/sitemap.xmap:182:109
	at org.ametys.plugins.core.ui.WorkspaceGenerator.doGenerate(WorkspaceGenerator.java:193)
	at org.ametys.web.workspace.WorkspaceGenerator.generate(WorkspaceGenerator.java:90)
	at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:581)
	at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:301)
	at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:782)
	at org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:414)
	at org.apache.cocoon.components.source.SourceUtil.toSAX(SourceUtil.java:101)
	at org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:321)
	at org.apache.cocoon.sitemap.ContentAggregator.generate(ContentAggregator.java:125)
	at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:581)
	at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:301)
	at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:483)
	at org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:144)
	at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
	at org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke(ActTypeNode.java:139)
	at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
	at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
	at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
	at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
	at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
	at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
	at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:236)
	at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:178)
	at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:254)
	at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:118)
	at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
	at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
	at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
	at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
	at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
	at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
	at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:236)
	at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:178)
	at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:254)
	at org.apache.cocoon.Cocoon.process(Cocoon.java:699)
	at org.ametys.runtime.servlet.RuntimeServlet.service(RuntimeServlet.java:543)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
	at org.ametys.core.ui.RibbonManagerCache._decreaseUsage(RibbonManagerCache.java:197)
	at org.ametys.core.ui.RibbonManagerCache.getManager(RibbonManagerCache.java:97)
	at org.ametys.plugins.core.ui.WorkspaceGenerator.doGenerate(WorkspaceGenerator.java:185)
	... 57 more