Hey NOIALBINOI,

Can you try these steps.

1. Force quit any Diablo III, Agent and Blizzard Launcher processes in Activity Monitor.
2. Navigate to /Applications/Diablo III.
3. Delete the D3Debug.txt file.
4. Reset the Diablo III game folder permissions.
5. Launch Diablo III.
If the game prompts to enter in your administrator username/password, hit Cancel.
If it doesn't it should load fine.
6. Diablo III should load.

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