@mariemintalucci, your issue is much clear now. So I can confirm that you are using the Enketo web form to collect your data on an android device. With the Enketo web form, you can collect data, but once you save, you cannot edit unless you save it as a draft as outlined in our support article Collecting Data through Web Forms.
Regarding the authentication required to issue, you should be able to solve it by following this post discussed previously:
