This is the error that appears using debug:
https://hastebin.com/ohuzifomec.vbs

Is it just the debug command that doesn't work?

Is that the full error?

That has fixed it

That's the full error. And the bungee is unable to connect to the database even though the spigot version can.

Can you pastebin your full log file?

Part of the log file that shows the error: https://pastebin.com/dRwRH7ME
The entire Log file is too large for pastebin

Seems like the name of your database is missing from the config file?

It was placed in there. Does the bungee plugin support one character database names and usernames?

Should do

Here is the brand new paste, I've imported the same database information as the spigot servers use: https://pastebin.com/XTnjR3JV

Same error, so

Seems like the name of your database is missing from the config file?

It seems that you need to fully turn off the bungee server, edit the config then start it

👍