Heya bro, Open ur file with extension .grf and edit this files clientinfo and sclientinfo
Search this line -> <registrationweb>https://example.com/</registrationweb>
Remove link -> <registrationweb></registrationweb>
Finally i resolve it! Dont add -> firewall-cmd --zone=INSERT_ZONE --add-masquerade --permanent
For remove in server proxy this command -> firewall-cmd --zone=public --remove-masquerade --permanent
/* Port Forwarding CentOS 7 FirewallD */
// ========================================================================
// Please read the comments per line it is self-explanatory.
// Important Parameters:
// INSERT_ZONE = output of the get default zone
// INSERT_IP = is the public IP of your main VPS or server
// If you like the guide give it a thumbs up!
// ========================================================================
// This command is to get the default zone being used by your VM.
firewall-cmd --get-default-zone
// This command is to check all rules applied to your VM by the current active zone.
firewall-cmd --zone=INSERT_ZONE --list-all
// Enabling Masquerade Status (IP Forwarding).
// This is the important configuration else below won't work
firewall-cmd --zone=INSERT_ZONE --add-masquerade --permanent
// IP/Traffic forwarding
// Make sure you have configured masquerade
firewall-cmd --zone="INSERT_ZONE" --add-forward-port=port=6900:proto=tcp:toport=6900:toaddr=INSERT_IP --permanent
firewall-cmd --zone="INSERT_ZONE" --add-forward-port=port=6121:proto=tcp:toport=6121:toaddr=INSERT_IP --permanent
firewall-cmd --zone="INSERT_ZONE" --add-forward-port=port=5121:proto=tcp:toport=5121:toaddr=INSERT_IP --permanent
// Add rules for ro-ports (assuming that you didn't change the port)
firewall-cmd --zone=INSERT_ZONE --add-port=6900/tcp --permanent
firewall-cmd --zone=INSERT_ZONE --add-port=6121/tcp --permanent
firewall-cmd --zone=INSERT_ZONE --add-port=5121/tcp --permanent
// Reload rules to take effect
firewall-cmd --reload