Webmin Lets Encrypt Type: unauthorized error

SYSTEM INFORMATION
OS type and version Ubuntu Linux 20.04.4
Webmin version 2.000

Hello everyone I’ve been running my own server using Webmin. In the last month I’ve noticed that when I try and run lets encrypt renew I get the error

Type: unauthorized

Detail: myip: Invalid response from

https://myurl.com/.well-known/acme-challenge/ha5LxMmqHf770Q4m9-vV9QXOL0akhBuKSKxilobR8EQ:

404

I know it’s not the DNS. I currently can’t figure out what the problem is. It Anyone got any solutions ?

I’ve changed the URL to a fake one for security

Could be your fqdm or and DNS or and permissions which is unlikely…have look at all of them.

ok I don’t think its the DNS as I can use certbot to still get a cert with no problem. How do I check the FQDM ?