Hi ​@Toan Bui Manh 

Thanks for sharing the screenshot! This error usually means there's a problem loading part of the Miro app. Could you please try the following:

1. Clear browser cache and cookies, then restart the browser.

2. Try opening Miro in Incognito/Private mode to rule out browser extensions.

3. Use a different browser (e.g., Chrome, Firefox, Edge) to see if the issue persists.

4. Disable VPNs or ad-blockers, if you're using any.

5. Check your internet connection, or try a different network (some firewalls may block resources from mirostatic.com).

If none of that helps, please share:

• Your browser and version

• If this happens when you duplicate the board and the same issue happens on the duplicated one

• If it happens on all boards or just specific ones

• Whether you're on a company network or personal one

That'll help narrow it down!

None of these work for me, still got the same error:

1. Clear browser cache and cookies, then restart the browser.

2. Try opening Miro in Incognito/Private mode to rule out browser extensions.

3. Use a different browser (e.g., Chrome, Firefox, Edge) to see if the issue persists.

4. Disable VPNs or ad-blockers, if you're using any.

5. Check your internet connection, or try a different network (some firewalls may block resources from mirostatic.com).

If none of that helps, please share:

• Your browser and version: 

  Chrome is up to date

  Version 138.0.7204.158 (Official Build) (64-bit)          
  Microsoft EdgeVersion 133.0.3065.69 (Official build) (64-bit) 

• If this happens when you duplicate the board and the same issue happens on the duplicated one: No

• If it happens on all boards or just specific ones: all my boards

• Whether you're on a company network or personal one: company network, used to connect Miro normal