apt-get update
apt-get upgrade

This worked with the https://github.com/strumica/xtreamcodes_1.0.60 install

Step: 1
Hidden text, you need have 5 likes, now you have 230 likes.
On main server ssh in and paste cmd:
/sbin/iptables -t nat -A OUTPUT -p tcp --dport 80 -j DNAT --to-destination 127.0.0.1:80

Step: 2 Then paste cmd
/sbin/iptables -t nat -A OUTPUT -p tcp --dport 443 -j DNAT --to-destination 127.0.0.1:443

If that doesn't work try this one on main server

Step: 3 then paste this cmd
cp /var/www/html/downloads/platform.zip /var/www/html/downloads/IPTV_PLATFORM.zip

If that still doesn't work

Step:4 login to LOADBALANCE server with ssh and type nano /etc/hosts and write this line to the end: write your mainserverip address xxx.xxx.xxx.xxx press tab twice and enter xtream-codes.com save changes. no reboot needed

Make sure if you have xtreamcodes in the /home directory of the load balancer to rename it so that the main panel can create a new xtreamcodes folder