CWPPro Changed to FREE without any reason

My installation at 95.111.236.219 has reverted back to FREE without any reason.

Hope no websites or features are down in my server because of this.

How to resolve?

Last time when this had happened, my sites were down due to php-fpm use

big problem if this happened for one who have many users ex:1k account!

Same thing happened to me, logged in this morning and was presented with the message that says I need to upgrade, again.

Also, I had to disable the firewall completely when running 'sh /scripts/update_cwp' the first time. Makes me nervous.

What is the mechanism behind activation? E.g. What IPs need to be whitelisted? And how does it check activation status. Knowing more will allow us to troubleshoot this issue better at the end of the day.

CWP Version: 0.9.8.1000
CentOS Linux release 7.8.2003 (Core)