Vehicles won't load

I got a localhost server up and running for testing my development but the vehicles won’t work. I’ve added the code in the Server.cfg and it loads properly on startup but I can’t get them to spawn in game with Lambda or Simple Trainer. Any body have any help?
The videos I used for reference are the following:

Hello @MaverikDesigns

I would love to help you. Sadly I lack information that I would need to be able to help you. So if you please can show me how you start your vehilces and the files of the vehicles themselves! (The folder that the vehicle files reside in that is). Else shoot a PM on FiveM For 1 on 1 assistance.

  • Serena