Changing your server version and type | GGServers ...
https://help.ggservers.com/en-us/article/changing-your-server-version-and-type-ve6dtm/
First, head over to the GGServers Multicraft Control Panel. Stop your server. When the server is stopped, click on the list next to “Server Type” and choose the version you want to use. Once it is changed you need just to click on "Save" and Start your Server! Notes: You can switch to Spigot, CraftBukkit, PaperSpigot, Vanilla and etc.
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