Flex System Server is not connecting to the internet

I am using Lenovo XClarity Essentials (LXCE) flex system console for servers that allows administrators to manage and monitor server hardware, firmware, and operating systems. but the problem is my LXCE fails to get update packages, its  prevent administrators from applying critical updates to the server infrastructure.
There are several potential reasons i tried to fix while updating packages, including:

1. Network connectivity issues: i checked if the LXCE flex system server cannot connect to the internet or, its not be able to download update packages. checked the network settings to ensure that the server can connect to the necessary resources.
2. Proxy settings: checked If the flex system LXCE server is configured to use a proxy server, ensured that the proxy settings are correct and that the server can access the proxy.
3. Permissions: LXCE requires administrative privileges to download and apply updates. checked If the LXCE service account does not have the necessary permissions, or, it may not be able to download update packages.
4. Firewall settings: checked If there are firewall settings blocking the LXCE server from accessing the internet or  packages update will not be able to download.
5. Server configuration: checked If the LXCE server is misconfigured or has outdated software, also checked if its may not be able to download and apply update packages. ensured that the server meets the minimum requirements for LXCE and that all necessary software updates are installed.

To troubleshoot LXCE update issues, i checked the LXCE logs for error messages or warnings that may indicate the source of the problem. verified that the server has a valid support contract and that the necessary credentials and settings are configured correctly.
I tried all above steps, but my issue is persists.

Can anybody help me to fix this error for me?