The problem showed only up, when one is running the HEAD version from CVS. The main problem was that openacs.org was running without a restart since june (about 50 days). The channels of the central apm respository are generated from CVS tags in a scheduled procedure. The code executed in the scheduled procedure is loaded only at startup time, so it did not notice, that the HEAD branch has moved to 5-10.
I've restarted the server, the problem should be solved by now.
