Issue (The better the description the better i can solve the issue):

Title

Steps to reproduce:

Launch a server with improved mobs

Affected Versions (Latest is NOT a version):

• Minecraft: 1.16.4
• Forge: 35.0.18
• TenshiLib: 1.3.0
• Improved Mobs: 1.7.3

Logs (Use a site like pastebin, gist etc. DONT COPY PASTE THE LOG IN HERE):

https://hatebin.com/czghbvtgna