Hi, ChangeSkin will not work on my server
I use a Spigot server , I have checked
ip_forward: true
bungeecord: true
bukkit-permissions: true
But he still did not respond , Please help me, thank you

Do you followed the BungeeCord setup guide (included enabled MySQL/MariaDB)?

Do not understand .... Sorry

Fill in the information here? What to fill in?

The table will be created automatically. You just need to create a database or use an existing one.

Sounds very handy, so should I go back to the previous step?

You still need to put the relevant details about your MySQL into the config.

But my server did not use MySQL , Is he necessary?

https://github.com/games647/ChangeSkin#how-to-install-on-bungeecord

For example BungeeCord doesn't support SQLite by default

Yes because BungeeCord doesn't include a driver for SQLite like Spigot/Bukkit/Paper does.

Okay, is that easy to teach?
I do not want to synchronize all the information, just want to sync ChangeSkin this plugin

Configuring MySQL/MariaDB isn't that hard and it's necessary to store the skins.