Overview

You may see an error when viewing the GRAN ONLINE webpage on your smartphone or tablet, especially when using an in-app browser like the one in Facebook.

Error types:

  • Unauthorized

  • Application Error: a client-side exception has occurred (see the browser console for more information)


Solutions

If you encounter this error, please try the following steps:

Step 1: Log Out and Log Back In

Step 2: Open Tournament Links in a Web Browser App

If you try to enter a tournament using an in-app browser (like the one built into Facebook), you may encounter this error. Instead, use a dedicated browser app like Chrome or Safari.

Step 3: Use a Different Device or Browser

Your device may be having trouble accessing the tournament webpage. If this happens, try one of these options:

  • Open the tournament webpage in a different browser app

  • Access the page from a different smartphone, tablet, or computer

Note:

GRAN ONLINE is designed for Google Chrome and Safari. Other browsers may cause issues.



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Be first for giveaways, prizes, app updates and offers.

By subscribing, you agree to receive marketing emails from GRAN DARTS. Unsubscribe anytime. See our Privacy Policy.

Dealer Portal

For authorized GRAN dealers.

© 2026 GRAN DARTS. All rights reserved.

Be first for giveaways, prizes, app updates and offers.

By subscribing, you agree to receive marketing emails from GRAN DARTS. Unsubscribe anytime. See our Privacy Policy.

Dealer Portal

For authorized GRAN dealers.

© 2026 GRAN DARTS. All rights reserved.