How to remove Metadata

Hi i have a little problem, i created some new pose with "pose converter" then i change their location in my folders.
Now when i go in pose and animate i have the metadata of the new pose i created but remove that still appears. And when i click on it that said ressource error file missing.
So i want to remove that metadata to clear my panel and after that i could make a proper new poses directory.
So how to remove those metadata.
Comments
Find their entries under Categories in the Content Library pane and right-click on them - there should be a Remove Reference command.