While normally I am not superstitious, I have had machines like that. They get a taste for your blood and the best thing to do is sell or put a bullet through it's brain (CDI)
The GoKart that ate my fingers was never safe afterwards either. Three other people were injured before it went to the crusher. Like a YerfDog Christene....
You can try exorcism but the safest thing is to put it down.
If more is better, then too much is just enough.
If you can't afford it, build it yourself.