UBB.threads PHP Forum Software Community Forums UBB.classic UBB.classic 6 Support member files aren't working

of course, therefore my old forums with posts are working, but _not_ the member files.

idea (what about this?):
fresh install of ubb6 with the upgrade version, then the forums are working but not the member files, how can i get my member files working now? something like rebuild member files (like it was in the old cp).