Aervitas

I set up a forge server for the Invasion modpack and I can't log into it.When I try to enter, it gives me a wall of text and I cant exit.I have to reboot my Minecraft.What's causing this problem, and is there a quick solution?Log is below(my player name is Aervitas if you couldn't tell). https://pastebin.com/Xn60Jq9M