Got the error from my logs saying
Exception caught during firing event: Cannot invoke "com.seibel.distanthorizons.core.level.AbstractDhServerLevel.removePlayer(com.seibel.distanthorizons.core.wrapperInterfaces.misc.IServerPlayerWrapper)" because the return value of "com.seibel.distanthorizons.core.world.AbstractDhServerWorld.getLevel(com.seibel.distanthorizons.core.wrapperInterfaces.world.ILevelWrapper)" is null
No crash report was generated