Help Needed: Admin Interface Error on Carbonio 24.9.1 - "Cannot Read Properties of Undefined (reading 'color')"

Hello everyone,

I'm currently experiencing an issue on a server running Carbonio Release 24.9.1. 

Here are the status details:

        amavis                  Running
        antispam                Running
        directory-server        Running
        mailbox                 Running
        memcached               Running
        mta                     Running
        opendkim                Running
        proxy                   Running
        service webapp          Running
        service-discover        Running
        stats                   Running
        config service          Running

It has been running perfectly fine for the last couple of weeks. Today, after logging in to the admin interface at https://mail.yourserver.com:6071 . While browsing the domain list, I keep getting the following error message:

"Can not read properties of undefined (reading 'color')"

I've also attached a Screenshot of the error for reference.

Moreover, I'm seeing some concerning logs in /opt/zextras/log/nginx.log:

2024/11/20 16:47:51 [error] 3291762#3291762: *703 connect() failed (111: Connection refused) while connecting to upstream, client: 103.XX.XX.10, server: , request: "GET /zx/login/v3/config?domain=mail.yourserver.com HTTP/1.1", upstream: "http://mail.yourserver.com:8742/zx/login/v3/config?domain=mail.yourserver.com", host: "mail.yourserver.com:6071", referrer: "https://mail.yourserver.com:6071/carbonioAdmin/manage/domains/global/domains"


2024/11/20 16:47:51 [error] 3291762#3291762: *732 no live upstreams while connecting to upstream, client: 103.XX.XX.10, server: , request: "GET /zx/auth/supported HTTP/1.1", host: "mail.mydchub.com:6071", referrer: "https://mail.yourserver.com:6071/carbonioAdmin/manage/domains/global/domains"

It seems there is some connection failure to the upstream, but I am unsure how to proceed from here.

Has anyone else come across this issue, or could anyone provide some pointers on how to resolve it? Any suggestions would be greatly appreciated.

Thank you in advance for your help!