Game Crash: Integrity error 0x80000001

Hi EA Support Team,

I am facing a persistent issue while trying to launch and play Apex Legends. Every time I open the game, it crashes shortly after and displays the following error message:

"Apex Game Integrity Message
Integrity error 0x80000001
Apex exited due to a failure of game integrity."

System & Error Details:
- Platform: PC (Steam / EA App)
- Error Code: 0x80000001
- Issue: The game closes immediately due to an Anti-Cheat / Game Integrity failure.

Troubleshooting steps I have already tried:
1. Verified and repaired the integrity of game files multiple times via the launcher.
2. Completely restarted my PC and closed unnecessary background applications.
3. Updated both my Windows operating system and graphics card drivers to the latest versions.
4. Ensured that the Anti-Cheat service is running properly.

Despite trying all these standard troubleshooting steps, the error persists, and I cannot enter a match. I have attached a screenshot of the exact error message to this post. 

Could you please look into this and guide me on how to permanently resolve this integrity error? 

Thank you for your time and assistance!