Steam Rejected Authentication: Invalid Parameter Error

I have this error: Steam Rejected Authentication: Invalid Parameter
Error print screen: https://i.gyazo.com/122e02e84f0fe34df50c954fa4b7cdaf.png

MY GTA V DONT HAVE ANY MODS. IS 100 % FROM SOCIAL CLUB.

Up to date?
Yes

Legit or Pirate copy?
Legit

Steam/CD/Social Club?
Social Club account.

You have Steam ON?
Yes.

Have you restarted?
Yes.

Windows version?
Windows 10 x64

Error screenshot

GTA V folder screenshot

GTA V/update/x64/dlcpacks screenshot

FiveReborn client folder screenshot

CitizenFX.log
https://pastebin.com/eXJqxu56

.dmp files**
.dmp is only if its crash. so. no crash for me.

lol just have steam running in the background

STEAM is running on background!!!

download source sdk 2007?

Yes i have the source sdk 2007 downloaded on my steam.

I have excatly same problem

Close FiveM.
Restart Steam.
Start FiveM.

Problem Solve.

I’m just gonna ask if ur gta is socialclub why the fuck do u have steamappid.txt in it ?!!!?!?!?!?!

because steam is installed? and he may have added it as a non-steam game.