Sorry for seeming impatient and I do appreciate the work done so far as well as the incoming improvements. I've just been stressed for the last few weeks (end of term) and thought it'd had been more time passed than actually did.
I don't get the error when I test the files, only after I assign the discipline to a character. At which point if I try to manipulate/add anything further, it pops the error. I'll try your suggestions and post back what happens.
EDIT: Changing the levels from no longer being unique seems to have worked, at least with Scourge. I haven't checked the other disciplines I've added yet, but I'm feeling confident that they will work as well. On a side note (question, actually), was purpose does the options Unique/Add Once/No server? I looked through the tutorials and haven't been able to find the info involving these, only the importance of the UniqueID.