Dashboard Custom Purge not Working

Hello there
I am facing an issue with the custom purge from Dashboard. It’s not working. I have tried almost ten times and waited for 3 minutes each. But the custom purge for a page not working.

Please help if you can.

Regards
Parvez

This is the website where I am getting the “Custom Purge” issue.

[[type or paste code here](https://bestlaptopsventure.com/)]

Please anyone can check it, and please tell me what I can do.