Checklist

• I have updated to the latest available Home Assistant version.
• I have cleared the cache of my browser.
• I have tried a different browser to see if it is related to my browser.
• I have tried reproducing the issue in safe mode to rule out problems with unsupported custom resources.

Describe the issue you are experiencing

Hello.

Got an issue with connection attempt on my NAS for a backup due to the fact my NAS was powered off.
This issue opened a notification in the UI.
Now I have removed the error, but I'm unable to clear the notification.

When I click the notification link, it is empty.

I also tryied to reboot, not better.

Describe the behavior you expected

I expect to have no notification anymore.

Steps to reproduce the issue

1.Really don't know...
2.
3.
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What version of Home Assistant Core has the issue?

2025.6.1

What was the last working version of Home Assistant Core?

2025.6.1

In which browser are you experiencing the issue?

Chrome, Firefox

Which operating system are you using to run this browser?

Windows 10 x64, Windows 11

State of relevant entities

Problem-relevant frontend configuration

JavaScript errors shown in your browser console/inspector

Additional information

No response