"It looks like this app isn't available" Facebook App Login Error

I tried everything but the problem is when I created an app previously "without verifying Business" Meta notify me to verify your business. after I verify the Business it still not working at last I archive and create a new app and it start working.
Note:
Don't archive the old app if you have important data in it. As I have not any data in that App that is why I archive

[@SaiKumarRacharla]

i have business i want facebook for business then how can i proceed

[@nightbird5937]

did you approved your business account on Meta? facebook

[@RacharlaSaiKumar]

It means completing verification process right..

[@nightbird5937]

@@RacharlaSaiKumar correct