Hello Emma Richardson.
The problem was because apparently they used an authentication system external to Moodle, it was for that reason that you could enter Moodle from the mobile application, since Moodle did not recognize those credentials as valid, thanks for the help.
The problem was because apparently they used an authentication system external to Moodle, it was for that reason that you could enter Moodle from the mobile application, since Moodle did not recognize those credentials as valid, thanks for the help.