@Choppadandi Anil kumar Thank you for reaching out to Microsoft Q&A, apologize for any inconvenience caused on this.
We have looked at the backend logs of the above shared webapp (Sri12) and we see a delete operation on the webapp at 2023-06-05 13:51 UTC it got succeeded as well.
To know more about the actual error message, I would suggest you enable the application logging_ and review the Log stream logs.
Feel free to reach back to me if you have any further questions on this.