Hey there, fabric admin
Please can you open the Microsoft Authenticator app on your phone. When you are on the first screen, where it is providing you with a code, please can you swipe down in the Authenticator app to force the app to refresh.
Once the app refreshes, it should provide you with a box to enter the code you are seeing on the screen, then verify it is you who is trying to sign into your account.
For the code it is asking you in the second image above, you must click onto your account in the Authenticator app. This will display a 6-digit code for you to use to sign into your pesonal account. If it is a work account, it will display an 8-digit code.
Hope this information helps,
Nathan