FiveM Fatal Eror

When I Launch FiveM I’ve got this message :

FiveM Fatal Error

[Main Instruction]
FiveM has encountered an error

Opening database (privcache:/) failed: IO error: Could not lock file.

If you require immediate support, please visit and mention the details in this window.

[^] Masquer les détails [Close]

[Expanded Information]
Crash ID: c863382d-6c27-4b0c-b365-08888b48a226 (use Ctrl+C to copy)

So, what can I do?

Use this template: Technical Support template and post here: