[Server Crash when spawning some mobs in autospawner]

If anyone else has had this problem can they post the mob which had done in the reply section, for future reference.

[Server Crash when spawning some mobs in autospawner]

When spawning some animals in attack of b team it ends up crashing the server

ones so far which have done it are-

 

Pregnant animals (Fossils/ Archaeology)

Endermen (Vanilla) - although mob grinder was used with it