Namecheap DNS issue

I have installing Jitsi on AWS EC2 server. The domain is purchased from Namecheap. I have updated the A record with the AWS Elastic IP. But I am getting this error:

Namecheap even can’t provide any support. They told that there was no issue with the dns record on their side.

This is not a DNS issue and those errors had been fixed in latest unstable packages when using nginx.
If you are using nginx you can fix it by hand using the first part of this commit:
https://github.com/jitsi/jitsi-meet/pull/4959/commits/417ddf196ed694d538eff3fc69a7cbe62a2ca23f (The changes in doc/debian/jitsi-meet/jitsi-meet.example going in your nginx config)