issue with certificate generation

[cvkmohan]

self-verify of challenge failed, authorization abandoned.
is the error message I am getting. Finally, command terminating with
All authorizations were not finalized by the CA.
No certificate is getting generated.
Created the IAM sample policy also - but - not working. Struggling for past one month and could not make progress. Hence reaching out to you.

[zdila]

Run certbot with -v to see verbose logs.