Individual Players Run out of Memory Only on Servers

Hello! I had almost finished my mod when i went to test it on a server with friends. After a long while(I'd wanna say about an hour or so), it would kick one of us out the server with the reasoning of out of memory. I tried playing in a singleplayer world and I have yet to see that crash. I know I have a lot of tick procedures(required for animated overlay) but I have optimized them to the best of my ability and this hasn't happened before.