2016-11-08 08:54:56,202 ERROR [org.ametys.plugins.contentio.synchronize.collection] (AmetysRuntimeScheduler_Worker-1;) 
An error occurred while importing or synchronizing contentjava.lang.IllegalArgumentException: 10015966 doest not match the expected regular expression : ^([0-9-_]*)[a-z].*$        
at org.ametys.cms.FilterNameHelper.filterName(FilterNameHelper.java:56)        
at org.ametys.plugins.contentio.synchronize.AbstractSynchronizableContentsCollection._getContentName(AbstractSynchronizableContentsCollection.java:611)        
at org.ametys.plugins.contentio.synchronize.AbstractSynchronizableContentsCollection.createContentAction(AbstractSynchronizableContentsCollection.java:575)        
at org.ametys.plugins.contentio.synchronize.AbstractSynchronizableContentsCollection.importContent(AbstractSynchronizableContentsCollection.java:432)