Hello,
To exit the BitLocker recovery screen, you will need to enter the recovery key. The recovery key is a 48-digit code that was provided to you when you first enabled BitLocker on your device. If you don't have the recovery key, you can't enter the drive.
About how to find the Bitlocker recovery key, please refer to this link:
Finding your BitLocker recovery key in Windows - Microsoft Support
Best Regards,
Hania Lian