I suspect that this is due to warptorio2 cloning the RITEGs, but I'm not certain.

The mod RITEG (0.3.0) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event RITEG::on_runtime_mod_setting_changed (ID 59)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
RITEG/RITEG-control.lua:57: in function 'update_ritegs'
RITEG/RITEG-control.lua:38: in function <RITEG/RITEG-control.lua:36>
stack traceback:
[C]: in function 'index'
__RITEG/RITEG-control.lua:57: in function 'update_ritegs'
RITEG/RITEG-control.lua:38: in function <RITEG/RITEG-control.lua:36>

Thanks for report!

I cannot reproduce the crash, but probably fixed.