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car respawn on zombs server

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I need help.I cant do like other people to just press F3 and spawn a car it just says "your car is already spawned (car blip on map)" please help me! What should i do!?
"your car is already spawned car blip on map"
It means that your car is already spawned you can see on the mini map at the left bottom corner or on f11 the big map there is a car blip in blue color that's where you vehicle is located.