Restore failed : Error reading response length from fastrpc.cgi :

SYSTEM INFORMATION
OS type and version RHEL 10.1
Webmin version 2.621
Virtualmin version 8.1.0 GPL
Webserver version REQUIRED
Related packages SUGGESTED

I get this error while restoring my backup.

Screenshot 2026-03-27 133859

Hello,

Do you have ports 10000–10100 open in the firewall on both Webmin servers?