I was in this situation not long ago, with a homemade framework with no documentation, a lot of variable abreviatated names (like $v, $d, $c) and method, no autoload (lot of require) and other old stuff.
What i did was just to dive into it. Even if i didn't like it and i was often irked at how the framework was made. It get better the longer you are in it, you also learn a lot about the language in general (php in my case), and you should and should NOT code.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
I was in this situation not long ago, with a homemade framework with no documentation, a lot of variable abreviatated names (like $v, $d, $c) and method, no autoload (lot of require) and other old stuff.
What i did was just to dive into it. Even if i didn't like it and i was often irked at how the framework was made. It get better the longer you are in it, you also learn a lot about the language in general (php in my case), and you should and should NOT code.