This indicates the current state of the code, explanations are as follow:
ERROR FREE: Means everything compiled, and can be ran and played without any CTDs/RLGs or major errors that render the game unplayable.
COMPILES: Indicates the actual code compiles, but running the game generates errors.
MINOR ERRORS: Code does not compile. The errors are already figured out, but take some time to be fixed.
MAJOR ERRORS: Onoz, I'm screwed

Chances are I'll have to roll-back to one of my backups.