Plutonium

This has nothing to do with plutonium since the servers are community hosted. Your best option is to contact the owner of the server you're playing on and ask them to whitelist your VPN's IP address. The main reason most community servers don't allow VPNs is that bad actors can use them to bypass bans, among other issues.

Check this: https://forum.plutonium.pw/topic/38171/how-to-reply-a-problem-with-plutonium-because-a-telecable-issue/2