So my server just crashed after 2 full hours of uptime and 0 lag, I had just hit 32 players. It has never really done this to me, and I wasn't doing anything out of the norm with it, was just hosting a TDM, nothing could have possibly caused it on my end.
As stated just 2 posts above yours, crashes are not the fault of the computer. I know it's easy to blame the service when something goes wrong but honestly like I said above, it's a problem with the game or the add-ons you have installed.
I have 2 test servers running for over a month with no crashes - 2 hours without a crash is not exceptional.