Ok, I have checked this am and the whole section disappeared, I can only surpise that Impactadmin was working on something and restored and older backup without my forum. It is not hidden or a permission issue, it does't exist.
Seems even I am not exempt from weird deletions
It will be restored this am and those that bid on the last one in there tzi.net will have to bid again as the auction will be reposted today.