Error on getEntityClass MobManager

Im getting an error attempting to configure mob spawns for some mods. Im sure this is way too much but... my friend wanted mo creatures and I wanted Advent of Ascension. AoA tends to spam the spawn rate and block most other things from spawning. Which is why I wanted to try out this addon and see if I could limit it. but I get an error:

[08:16:25] [Server thread/ERROR] [FML/]: A fatal exception occurred during the server about to start event java.lang.NullPointerException at java.lang.Class.isAssignableFrom(Native Method) ~[?:1.8.0_91] at com.bloodnbonesgaming.advancedspawncontrol.MobManager.getEntityClass(MobManager.java:326) ~[MobManager.class:?] at com.bloodnbonesgaming.advancedspawncontrol.MobManager.fillSpawnRegistry(MobManager.java:277) ~[MobManager.class:?] at com.bloodnbonesgaming.advancedspawncontrol.MobControl.loadComplete(MobControl.java:88) ~[MobControl.class:?]

Full log here: https://www.dropbox.com/s/6wmrqvopzu7b6s4/fml-server-latest.log?dl=0

JSON file here: https://www.dropbox.com/s/428ztkhd7f5qzjh/AdvancedSpawnControl.json?dl=0

Just a thought, but couldn't you just add validation to check for null before doing anything with it? That should be a relatively simple fix right? and then maybe log a message of like "cant find entity blah" or something.

I apologize if I'm asking for too much. Maybe there's something I'm missing with this. Or somewhere I'm messing up.

Your assistance is appreciated, thanks.

Minecraft 1.7.10

Windows 10 64-bit

Java 8 Update 91 64-Bit

AdvancedSpawnControl-0.9.1

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