I am trying to make an addon or whatever you call it for those two. I tried only using one mod but it also crashed. any help?

Now it gives me
"Traceback (most recent call last):
File "mod_loader.py", line 209, in <module> ValueError: non-hexadecimal number found in fromhex() arg at position 25
[9032] Failed to execute script 'mod_loader' due to unhandled exception!" any help?

How do I do it? it gives me "mod_loader.exe: error: the following arguments are required: --game/-g" when I launch it