white page on archive links for unregistered visitors not registered ones
 

Dear vb community*

when I sign up to the forum then clik the archive links bottom of the forum* I can see the threads but when I visit with no log-on to the forum and clik the archive links then I see white page instead of archive threads. I am using vbSeo and I asked to the support of vbseo but they said me that the problem was related with vbulletin not vbseo. They are right because altough I disabled vbseo* the trouble was going on. Also I re-upload the archive folder to my host but nothing has been changed.

Any advise?