Unable to get arguments from os.pullEvent() after 'transferring' it to another variable, and calling it from an API

My API (linked) throws an error at line 33 when I call MTOS.pullEvent() (after calling MTOS.boot_pre() to set things up). I'm confused what's going on here because when I call MTOS.boot_pre() and then oldOS.pullEvent() in the LUA interpreter, it works fine, but bugs out when called in the API. Any help is appreciated.

Please excuse the messy/redundant code, I added it there when I was debugging. The API is a part of a psudo-OS I'm writing, it shouldn't require any other APIs but in case there are any issues they are located in the APIs directory of the linked repo.

You are pulling 9 events per call in processOSQueue. Don't do that.

That's the debug mess I was talking about. I was trying to determine where/why calling an event causes an error, for some reason pulling an event works when I don't store what it returns anywhere (just pullEvent() ), but throws a indexing nil error when I try to store it ( event = pullEvent() ). Only one would be present in the finished code.

Update:
capitalization is the bane of my existence.

(I typed oldOs instead of oldOS)

Not my proudest moment.