Our server recently crashed, and I'm not exactly sure what caused it, but from this crash report, it appears to have something to do with turtles.
As the for the turtles we currently have running:
Melee Turtling in a Mob Farm
Shearing Turtles to shear sheep
Regular Turtle putting down cake when we eat up the last one.
If you could help me figure out whats wrong, I would appreciate it.