Server crashes and players getting kicked

[Arthurisdabest]

The latest crash log http://pastebin.com/HmuMXiRp

Things that cause the server to crash are things like placing chunk loaders or world anchors, and not sure if its coincidence or not but half the time withers get spawned the server crashes.

Players get kicked for placing down chunk or spot loaders and sometimes the chunk resets. Players don't always get kicked and sometimes the server does crash after this

 

[Nessiroj]

java.lang.OutOfMemoryError: Java heap space

Java is running out of memory / GC aint quick enough. What modpack are you using?

on a side note i see your starting the server and instantly use 2GB ram of your server. I'm not sure if that is what you want

-Xms2G -Xmx3G

you might wanna change it to

-Xms512M -Xmx3G

 

[Arthurisdabest]

Using the ultimate pack

Thanks will change that and see if it helps

 

[Arthurisdabest]

We just changed the it and we tried testing some stuff. Spawning a wither is crashing the server everytime we restart and spawn one. And just tested the chunkloader with players who got kicked before and it seems that its working. Going to continue and see if any more crashes happen. Thanks for the help