GTA V version?
Up to date? Yes
Legit or Pirate copy? Legit
Steam/CD/Social Club? Social Club
Windows version? Windows 10 Pro
Did you try to delete caches.xml and try again? no i cant find this folder
Error screenshot (if any) 
System specifications
What did you do to get this issue? nothing
What server did you get this issue on? i cant open FiveM
CitizenFX.log file
.dmp files/report IDs
If an issue with starting:
GTA V folder screenshot
GTA V/update/x64/dlcpacks screenshot
Filepath to FiveM folder
FiveM client folder screenshot
Did you try to disable/uninstall your Anti-virus? Yes
Also add what you already tried so far. Everything