Modded vehicles won't work for me

Hey guys!

Since yesterday i started playing FiveReborn, because i joined a clan. After i joined the clans server i downloaded the fivereborn modmenu. They told me to spawn a specific car, but when i spawn the car my modmenu crashes and the car won’t spawn.
I’m not sure what this is and this is actually the first time modding gta v so i could be a completely dumbass.