I first saw this on my back up tablet last night which is stand alone and not networked.
ART version is 1.6.7.3 30/06/2026
The error is thrown on ART opening.
Testing on my laptop with WiFi turned off the same error is thrown so it is not device specific
Pressing OK allows ART to run.
The same error is shown when ART closes.
I attach the ErrorLog file