Here's a potential fix for the Lost Ark 'EAC Offline' or 'Error 10011' issue
Can't start the game Easy Anticheat error 10011 - Bugs - Albion Online Forum
Launch ERROR Code: 10011 - English Support - New World Forums
Elden Ring Easy Anti Cheat Launch Errors: 2 Solutions to Use
Launch Error: Failed to start the game (2)/ Launch Error (10011): Couldn't start the game – Bloodhunt
Launch Error (10011) Couldn't start the game We're sorry, we had a problem starting your game Please help us by reporting this issue. Error Code: 10011 (Failed to start the game (2))
Fix Easy Anti-Cheat Error Code 10011 in Battlefield 2042
How to Fix Smite Easy Anti-Cheat 'Error 10011'
Need help with error 10011 on Easy anti cheat : r/Paladins