Forum OpenACS Q&A: Found a cyclic link in....
I had a problem like this when I upgraded from something like 4.6 to 4.6.1.
I ran an upgrade script, and it had an error, but it looked like all the packages had been upgraded. If you click on my name and look at my posting, you might be able to find it.
See https://openacs.org/forums/message-view?message_id=84289