Trace together app says validation failed
iPhone 13
iOS 15.1.1
Unable to search data using the tracetogether application, it says data is invalid or wrong
Issue started after restoring the back up from iPhone XS to iPhone 13.
Uninstall and reinstall the app, same issue.
Tried another network, same issue.
Erased iPhone 13 and set up as new, same issue
Sent a ticket to app developer but did not get any response.
In Singapore, without this app, you cannot go anywhere.
Please advise what to do to get the app working.