Not working dlc cars and addons

[wreckedshelf]

I cant get the car addons to work even thought everything is installed perfectly well. Before I attempted to install the addons, the game dlc cars were working, after i installed the car addons both the addons and game dlc cars didn't work, i have the steam version of the game please help

[kagimf]

same as my problem

[MAFINS]

https://www.gta5-mods.com/misc/gta-5-gameconfig-300-cars