I have a little problem with PM!

Vulnerabilities is never finishing, and I get this messsage: !!!!! Patch Exception: could not insert collection: [com.patchlink.sapphire.datamodel.PatchList.signatu re#174

and after that my system message log is filling up with:

!!!!! Patch Exception: attempt to create saveOrUpdate event with null entity{}
updateDBObject Error{}

And ideas?!