2FA Authenticator (2FAS) funktioniert nicht

2FA Authenticator App is a simple and free application for Two Factor Authentication (2FA) which generates Time-based One-time Passwords (TOTP). 2FAS App helps you protect your account from hackers by adding an additional layer of security.  Why 2FAS APP is the most secure and private Two Factor Authentication app? 2FA doubles the account's security by requiring a regular password and a Time-based One-time Password (TOTP). 2FAS App generates TOTP on the user’s device.  We are developing a remote backup service (RBS) function that will allow you to store service keys in a secure 2FAS Backup based on a cloud and recover it if you lose your phone.  The application generates Time-based One-time Passwords (TOTP), stored on the user's phone without internet access.  In case you lose or damage your phone, you simply install 2FAS App on your new device to get access to your Keys.  With the 2FAS Backup system, you can store all your Keys in the cloud and access them when needed.  Confirm your identity with the application using Touch ID or Face ID and generate one time tokens required to log in to your online accounts.  Once configured with an online account, the application works efficiently on various mobile devices and allows you to log in from several devices at once.  This feature will also allow you to generate codes on different devices (cross-device sharing).  This solution dramatically increases login security.  For your convenience, you can either use a QR Code or enter your secret key manually.