When I tried to log into KoL after rollover today, mafia seemed to get caught in a loop. The line "Visiting Deluxe Mr. Klaw "Skill" Crane Game in clan VIP lounge" was repeated over over 5000 times. I quit and turned off Breakfast and was able to login. Your mileage may vary.
I logged in manually in a Browser, logged out, and then went and successfully logged into KoLmafia with logging, to see what was up - and it logged me in successfully.
Hard to understand how they could have broken things for people who are not on the new path, but they seem to have - and I was unable to debug it.
I'll try again with my other character who has a VIP key.