It depends on the type of ban. In Minecraft, the person in charge of the server can ban you as a player or ban your IP address. If they ban you as a player, then you can get around the ban by accessing the server with a different account. If you’re dealing with an IP ban, then you’ll have to change your IP address — and the easiest way to do that is to use a VPN, which masks your real IP address with a virtual one. If you’re not sure which VPN is good for Minecraft, I recommend using one of the VPNs on my list to continue playing.