Caused by: java.lang.NullPointerException
    at org.ametys.cms.contenttype.DefaultContentType.getMetadataDefinitionByPath(DefaultContentType.java:723)
    at org.ametys.cms.workflow.EditContentFunction._setInvertRelation(EditContentFunction.java:2927)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeContentReferenceMetadata(EditContentFunction.java:2580)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeMetadata(EditContentFunction.java:1666)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeMetadataSetElement(EditContentFunction.java:573)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeRepeaterInReplaceMode(EditContentFunction.java:2020)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeRepeater(EditContentFunction.java:1791)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeCompositeMetadata(EditContentFunction.java:1752)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeMetadata(EditContentFunction.java:1678)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeMetadataSetElement(EditContentFunction.java:573)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeMetadataSetElement(EditContentFunction.java:578)
    at org.ametys.cms.workflow.EditContentFunction._bindAndValidateContent(EditContentFunction.java:476)
    at org.ametys.cms.workflow.EditContentFunction.execute(EditContentFunction.java:257)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.ametys.runtime.plugin.component.PluginsComponentManager$ComponentInvocationHandler.invoke(PluginsComponentManager.java:159)
    at $Proxy18.execute(Unknown Source)
    at com.opensymphony.workflow.AbstractWorkflow.executeFunction(AbstractWorkflow.java:869)
    at com.opensymphony.workflow.AbstractWorkflow.transitionWorkflow(AbstractWorkflow.java:1042)
    at org.ametys.plugins.workflow.Workflow.transitionWorkflow(Workflow.java:496)
    at com.opensymphony.workflow.AbstractWorkflow.doAction(AbstractWorkflow.java:567)
    at org.ametys.plugins.workflow.Workflow.doAction(Workflow.java:253)
    at org.ametys.plugins.workflow.cocoon.WorkflowAction._act(WorkflowAction.java:45)
    at org.ametys.cms.workflow.ContentWorkflowAction._act(ContentWorkflowAction.java:68)
    at org.ametys.plugins.workflow.cocoon.AbstractWorkflowAction.act(AbstractWorkflowAction.java:65)
    at org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke(ActTypeNode.java:125)
    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.buildPipeline(ConcreteTreeProcessor.java:194)
    at org.apache.cocoon.components.treeprocessor.TreeProcessor.buildPipeline(TreeProcessor.java:267)
    at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:111)
    ... 97 more