Well, the problem is that whenever I run L4D2, it likes to be a bitch and just stop working 95% of the time and for some reason, it's usually happening when I have mods in my game. Whenever I have no mods, it works perfectly.

I've tried reinstalling my game but nothing happens. Sometimes, during the loading screen, my game freezes I know this because the loading time suddenly stops and doesn't continue on afterwards.

Afterwards, once I crash on back to the desktop, I get the infamous Runtime error message.

Sometimes, I CAN actually make it into the game WITH mods enabled, but sometimes, I can't even make it halfway into the campaign without getting another runtime error.

Other times where I actually DO make it to the saferoom and finish the level.......only for me to be happening across another runtime error.

For some reason, it only happens when I have mods in my addons folder. Whenever I don't have any mods, it works just fine.

Later on today, I'm going to be making some more gameplay footage of a custom L4D2 map and I'm NOT going to be dealing with this runtime error nonsense.

Can someone give me any suggestions?

Here's a video of what I'm talking about.