Crashing after adding add-on cars

I followed the mixmods guide but I'll keep getting a crash on loading at 0% progression The crash log states Last file to be loaded: vehicles.ide Last library loaded: d3d9.dll Exception address 0x004C678E Exception Code: 0xC0000005 Inaccessible memory address: 0x18

I've tried installing the lines txt with modloader but the game would crash when I got to my addon car in the spawner. The car also never spawned on the road, so I added the lines manually into every file and now the game won't even load.

It seems like no matter what I do, addon cars will just not work. I have no idea how you got them to work. I can always replace them, but I really can't let go of any vanilla cars and prefer replacing.

PS if there's a discord server for gtasa modding I feel like this issue can gain more exposure over there so feel free to share an invite.

EDIT: I moved the original files to data and essentially deleted the addon car but I'll get the crash anyway. I also disabled all the modloader cars I've already had and I'm still getting this crash so I don't think the crash is entirely caused by the added car. Something is wrong with vehicles ide