insert button in the GUI broken

I created a job with the Windows Share Connector and a Solr output connecotor then I selected the "Paths" window and created a new path.
After I added the path and when I click onto the "insert" button i get this Exeption on firebug:
"missing ; before statement http://localhost:8080/mcf-crawler-ui/execute.jsp Line 1"

So it could be that the javascript handling is broken.