CloudNet Minecraft Server does not work with ModServer?

I have a problem I have CloudNet and there I wanted to run on a subserver TraverTine, only is always in the console when I want to join from the lobby on the TraverTine server Connection lost

Can someone help me there?

TraverTine is bungee cord and thermos

1.7.10 because the mods need 1.7.10

Best go to the discord server of those. There you can be best helped.