Hello, all. I have the server on multiplayer, but I see this error waterfall 1.8.x 1.9.x 1.10.x 1.11.x 1.12.x 1.13.x
Is this the error that shows up whenever you try to log in? What version Minecraft are you trying to log into the server with?
Are you using a mod/modpacks? I am not sure if you can connect with 1.13.2 -- Try connecting with 1.12.2