How to fix those errors in demos

[Bamarin [IT]]

For now it's just a question but i hope to find an answer.
How do i fix this?

 

[Minilarro]

Ehm, the fact that a cop car is in the ground under the white car? and the cop sitting in the air? I dont think this can be fixed? well anyways I've never seen this.

 

[Bamarin [IT]]

@John Daymon in game i see everything normal so i don't think it will change anything. I'll try anyway thx

 

[Bamarin [IT]]

reinstall the content pack

@John Daymon have i ever told you that i love you? <3