Phantom procedure making the game unplayable

So a day or so ago, one of my procedures randomly started to crash the game and I wasn't able to figure out why. After a bit of attempted diagnosis and fixing, I just deleted the procedure, yet it continued to crash the game and appear in the crash logs. I checked the files and no such procedure exists. This phantom procedure runs every player tick, reads way beyond the length of the original procedure and throws a NoClassDefFoundError after a while, crashing the server the moment it starts.

What...