The problem was that CE needed an explicit reference to EZF_Era_ZombieBase
to create events on the server. This problem has been fixed.

All classes using my zombie base class must have
requiredAddons[]= {"EZF_Era_ZombieBase"};
This also applies to modding

skinning settings
Compatible:
Erapulsar_Zombies [v2.3]
Erapulsar_Zombies_2 [v1.3]