Hey,
The problem is that I can't connect to the server anymore. In the server list I can see the server with a note "BungeeCord 1.8x-1.14x" in red next to the name but I never tried to add this plugin. When I try to join an error message shows "Failed to connect to the server. Outdated server! I'm still on {0}".
Thank you for you interest in my problem and tell me if you need anything else that might help you.