CSF "refused to connect"

I’m having trouble with CSF on a fresh CyberPanel installation on AlmaLinux 9. When I try to access “Firewall Allow IPs” in the CSF web interface and save changes, I get a “refused to connect” error.

I’m running the latest version of CyberPanel and have checked that CSF and LFD are running. I’ve also checked the CSF configuration file and made sure the necessary ports are open.

I’m not sure what else to check. Has anyone else experienced this issue on CyberPanel with AlmaLinux 9?

I’m using Almalinux9 and Cyberpanel 2.3.9 and I paid for all the add-ons and I’m having the same problem, the graphical interface doesn’t save changes!! I’m making changes by editing the file via SSH and it’s getting annoying!!! I’ve tried countless solutions on 3 different servers with Almalinu9 and one with Ubuntu22.04.5, it’s always the same problem: gray screen and refusal with the server’s IP!!! If anyone finds the solution, I’d be grateful