https://pastebin.com/4v3G1LFT

It gives theses errors when I'm loading on Bungee (Waterfall).
Any solutions ?

@benwoo1110 Got same errors...

I have the same errors on my Paper server (1.16.3)

the error is Caused by: me.lucko.luckperms.lib.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Public Key Retrieval is not allowed

See https://github.com/lucko/LuckPerms/wiki/Storage-system-errors#mysql-public-key-retrieval-is-not-allowed for a fix

The wiki page Ben linked is my exhaustive advice on this subject I'm afraid - sorry.