Yes, multiple issues
One, I want to 301 all the pages with the error, now that code you posted does a rediredt, but is it an actual hard 301 redirect?
2nd, Upgrading to the newer 3.x version everything worked except i could not view the threads, just got a blank page.
3rd my sitemap was integrated when i had the paid installation of vbet a while back, so now it generates a sitemap but you get a Internal Error when you try to access it, and also the error i reported abouve when you generate a sitemap.