Crash when spawning add-on car

[HKGxMavL]

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GTA V version? Lastest
Up to date? Yes
Legit or Pirate copy? Legit
Steam/CD/Social Club? Steam
Windows version? 10 home
Did you try to delete caches.xml and try again? No
Error screenshot

**System specifications I7 7700K, 32gb ram, 512gb 960evo
What did you do to get this issue?

I follow this video step by step to add the car. (https://www.youtube.com/watch?v=GrxyQjQsXM4&t=460s) And when I try to spawn the car. Fivem crashed with the above error (crash sign: fivem.exe+ 65F058). Here is the error log.CfxCrashDump_2019_06_27_16_42_35.zip (988.4 KB) Please help! Thanks.

The car I try to add is: Ford Shelby GT500 | Hot Pursuit Police [Add-On / Replace | Template] - GTA5-Mods.com.

[system]

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[CRena]

Well check your game files also note that car model maybe it’s not properly done

[HKGxMavL]

Thanks for replying but can you please be more specific? Which game file? And I pretty sure that the car model is finished since I have tried three different add on car after posting this thread.