Ticker not working after Squid installation

I had a working layout and our CMS with Docker in a linux CentOS 7 environment.

After activating the Squid service on this server, the CMS ticker module stopped displaying the information, and even changing the rss it doesn’t display anything.

I’ve tried reinstalling Xibo, I’ve tried redoing the layout, but in no case it worked.

The server has a normal internet connection and does not have any blocking rules preventing Xibo connections, including the weather module is working and updating information normally.

Has anyone been through something like that that can help me?

Thank you in advance.

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