After reviewing the incedent, unfortunately, we cannot find something to improve in Panoply work. In retrospective there was no issue or problem with the platform and the reason the app was disabled was because the tester did not have valid credentials to the platform. It is very unsettling that FB decided to disable the app and just then inform us of the actual caveat.
After the credentials were provided the app was approved within a few hours.
People involved - alon oded Mykyta