Hi, Kishore Kamble
Thank you for using Microsoft products and posting them to the community.
I understand that there is currently a problem with Microsoft Authenticator.
Unfortunately, the issues with Authenticator go beyond the support of the Microsoft community.
There's a section of Microsoft Learn dedicated to this issue designed to support Authenticator users like you.
Link to the forum:
Microsoft Authenticator - Microsoft Q&A(available in English only), where you can ask for details and share troubleshooting ideas.
Finally, even though I can no longer help you, I hope the information I have provided has helped you find your way.
Best wishes
Aiden.C - MSFT |Microsoft Community Support Specialist