Last time I tried https://lastexception.com didn't said any of those things but to send and email because that was a new kind of error wich I did.
I deleted localthumbcache.package and the error seems gone. Didn't know there were cache files or folders to delete.
I noticed there are a bunch of folder like: cachestr onlinethumbnailcache Tray
Are these all cache folders? Are they safe to delete from time to time?
Thanks for the help and the reply.