When i buy a vehicle i don"t own it. (Please help)

Ok so I am currently testing my server and no matter what garage or vehicle shop script I have I keep getting that I don’t own the car that a brought. I look in my database and the cars and plate are there under my owned vehicles but I cant store them or nothing is like I didn’t even buy the car. Then I get this error in F8 saying something about network id no such entity. I really need help with this I’ve been trying to figure this out all week. If anyone has anything I will appreciate it!