HearthArena stuck on "Verifying Configuration"

I've a problem with Hearth Arena being stuck on Verifying Configuration. I've tried to:

• Restart HS
• Restart Overwolf
• Log-out/in from Hearth Arena
• Uninstall Hearth Arena
• Uninstall Overwolf
• Uninstall Hearthstone

Nothing seems to fix the issue. Any suggestion?

Thanks!