Ok, not sure if this is a good thread to post this in, but the OP and the first couple of posters reporting similar issues were similar to what I'm seeing, and I can even place exactly when it happened.
Last night, before I went to bed, I decided to fight the NS and didn't realize mafia had left me with a ranged weapon as a muscle class with no combat skills, so I autoattacked her until the combat timer ran out unsuccessfully. After that, I changed weapons and took her on again, forgetting to restore HP and suchlike, and got beaten up by the second form. After that, I restored my HP, checked my gear again...and then found myself unable to adventure in the chamber again.
I then logged out of mafia and did it in the vanilla game and thrashed her with amiable derring-do and panache and suchlike. Logged out of the vanilla game an hour or so later, started auto-adventuring in the castle to burn my large quantity of remaining turns, and now moods won't fire and HP restoring doesn't fire, as well as the relay browser adventuring not working. I can still tell it to autoadventure, but moods still don't fire and HP restores don't fire, and in my case, and it was a matter of restoring HP in the middle of buffing, I think. I'll go back and fetch the CLI log to post in a moment. After looking at it, it seems like that was, in fact, what happened, however, restarting Mafia did not fix the problem.
Any help in tracking this down and helping me fix it would be greatly appreciated, or, if the fix was on one of those two pages I skipped in this thread, pointing it out and making me feel stupid is just as helpful.