Ticker + RSS + CentOS

Hi,
I have just installed Xibo xibo-cms-2.0.0 on CentOS release 7.6.1810 (Core).
I have configured a layout and connected the displays (android and Windows).
All is well except for the ticker with RSS feed. Nothing shows.
Is there any kind of configuration necessary for Linux OSs?
Any suggestion?

False Alarm… Black Font on Black Background!!!