Yeah ... those error messages look familiar (from my attempts last night).
I still can not get to the "top level" ... but I have now "discovered" a feature I've not used before: the "Forum Jump" scroll list (at bottom right of pages) ... It does not fix the issue, but it band-aids the problem and give me back my daily dose of TMC

More addictive than caffeine !
Hopefully the "top level" problem "goes away" too ...
Update: I am now also having the "top level" symptoms with this link:
News, Articles and Events - Tesla Motors Club Forum