Model and Script problems

[[{Griaule}]]

I always get a message that says there's a problem with the models of the special infecteds and there's a problem with the script of the gnome.
I get these messages since I added the a special infected model replacer addon and the DeathCraft 2 addon to my game.
How can I fix this?
I tried to remove these addons from the game, but it didn't work. I don't want to reinstall the game, because it takes a year for me and the addons don't work perfectly after installation (I'm happy now I don't have missing textures in the addon campaigns).
Any ideas?

[「Izzy」]

Try verifying the game cache and if that doesn't work, remove all of your add-ons. If that works, then there are more causing the issue.

[[{Griaule}]]

I tried to remove all addons but it didn't work. I'll try to verify the game cache, maybe that'll work.
Thanks! :)