Running MagicMirror in Docker image (from khassel) and I am seeing this error every 10 minutes (which aligns to the updatenotification module). I've tested this both on a raspberry pi and also on another linux box.

MM version is up to date: 2.23.0

The error I am seeing is:
[ERROR] Failed to retrieve repo info for MagicMirror: TypeError: Cannot read properties of null (reading '1')

Please let me know if there is any other information I should share.