It's a CTD. It started happening about a month ago, and looking back nothing was even added at that time. Possibly an addon updated and something conflicts? Kinda just started happening.
Also yes, it is DarkRP. Good guess. I will go ahead and try a full data reset however. I've also been told by players crashes seem to get worse later in the night? Not really sure if that's true, could just feel like it does.
EDIT: Deleted all ULX/ULib data. Didn't fix anything, guess it wasn't the issue.