CHMOD is the way you set permissions on files; generally though FTP... It means that all users executing the files can write to them...

I'm taking a shot in the dark and guessing that you didn't install your forum on your own...

There is a permission checker in your admin center which checks the permissions on all files to validate that they're setup properly to utilize all features; whoever setup your forum should go through there and update permissions on files accordingly...

I am a Web Development Contractor, I do not work for UBBCentral. I have provided free User to User Support since the beginning of these support forums.
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