Messenger service doesn't work

[Saxtus]

Hello!

We are using csf on many of our servers, however, on one of our servers the Messenger service doesn't seem to work.
The server has cPanel and LiteSpeed. It also has BitNinja installed, but the problem happens even if we have the BitNinja service disabled.

Here is what we tried:

• Switching to Messenger v1, v2 & v3
• Uninstalled and reinstalled csf
• Copied the csf configuration file from another cPanel server with Litespeed & BitNinja (where Messenger service works fine) and restarted csf/lfd

Any idea what else to try?
Is there a way to enable some debug log that will help to resolve this and how?

[honesting]

CSF have a debug mode but didn't help me either.