I'm with @Cass on this one. Just verify the game files, and it'll download the missing files. Make sure you have your mods backed up if you don't use a mod fold (even though you need to use one IMHO).

@ColdAF That is still vague, unhelpful, and doesn't mean anything. Providing screenshots or another form of what is happening would be helpful. Odds are, it may be your unzipping application with the issue.

Part of the issue is that your game is heavily modded. IMHO, you'd need to reset to vanilla (assuming you've backups of that and of the modded so that you can easily switch back and forth). go to vanilla and try each mod by itself one at a time to see if the error happens again. After that try them in stages, such as start with mod1 and add mod 2 and then test the game. if error free, add mod 3, test. rinse and repeat until you've isolated the source. It's extremely tedious and time-consuming BUT it will help you narrow down a possible cause as it could be a mod conflict, or even a mismatched folder somewhere.

@TheMurderousCricket Very well said.

@hiwi234
Maybe you should read the GTA5mods rules found here
Specifically: "Can I use these mods for online use?
No. The mods on this site are generally designed for singleplayer use only, and discussions about modding GTA: Online with the intent of cheating are not supported or allowed. Furthermore, your RGSC account may get banned by Rockstar for using mods online." Not saying this to be an a-hole, merely to inform even though it's explicitly known that online modding is strictly prohibited both with the game and on this website.

@Reacon
<Item>dlcpacks:\vanillawheels</Item> is also what I have from the package. AFAIK, if you don't have it installed correctly, it will crash trying to load a file that isn't there.

@JustHelpMeFixMyMods said in Where'd the lore-friendly wheels pack go?:
I know Vanilla Works Extended is gone, but I know that one will make a return as it was taken down so the author could separate it from Dispatch Works.

No, Vanillaworks Extended Pack [Add-On | OIV | Tuning | Liveries] 2.3 is still on the site. I'm not sure why the wheel pack left. I kept the final version that was on here to go with VWE .