[xwiki-users] Error -You are not allowed to view this document or perform this action.

I've created an app with app within minutes. A normal user gets the following error: Error You are not allowed to view this document or perform this action. What can cause this error, the space has the right rights set. (View, Comment and Edit; no Delete or Admin) No document level security. Other documents in the space can be seen… The page CdLSATEPrivat/WebHome is generated by app within minutes, but I have modified the documentsheetbinding The LiveTableViewSheet has been copied from app within minutes space into CdLSATEPrivat space Is there any groovy scripts that can not be used by normal users? Gerritjan