Some ideas you might want to try:
- Clear cache manually. Synchronized data issue maybe?
- Try F5'ing the URL on the popup window.
- Try playing on an incognito tab (Alt + Shift + N).
- Try following the link below that leads to your apps control tab on your google account, revoke Arcane Legends permissions and refresh game.
https://security.google.com/settings...ns?hl=en&pli=1
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