Last weeks, Google has suspended or removed some apps due to the strict application of point 4.3 of the Distribution Agreement regarding personal and sensitive information policies. This story began with the need to include the message of acceptance of these policies by the user. In particular we were taking the email and the phone number for statistical purposes. Anyway it seems that this message did not seem to be enough so from November 15 we stopped taking any data to avoid such suspensions.
However, there may still be an app that is doing it (due to some lack of connectivity in the update).
Therefore, if this happens, generate new version, download the APK and upload it to the Play store you won't have any problem.
And if you have a moment, update your apps regularly.