core: Internal server error, please try again later: You did not send a token!

The problem

Don’t get any notifications anymore on my iPhone. Installed the latest iOS app today. I know it worked on the Mobile App before and the HA OS 2021.11.5.

What version of Home Assistant Core has the issue?

2031.12.3

What was the last working version of Home Assistant Core?

2021.11.5

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Mobile_app iOS

Link to integration documentation on our website

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

Logger: homeassistant.components.mobile_app.notify
Source: components/mobile_app/notify.py:183 
Integration: Mobile App (documentation, issues) 
First occurred: 13:00:11 (3 occurrences) 
Last logged: 14:24:51

Internal server error, please try again later: You did not send a token!

Additional information

No response