I can give many private plugins such as my factions one, had to make it from scratch to support my 1.13.1 server before the rest got updated
I have a list of them
Did you apply all the non-cheat nodes?
"/shop Open the main shop menu shopguiplus.shop
/shop reload Reload the configuration shopguiplus.reload
/shop [shop name] Directly open the specified shop shopguiplus.shops.<shop name> (see the paragraph below this table)
/shop [player] [shop name] Open...
i was on nulledbuilds, and i wanted to get a cool build, so i pressed the upgrade, it sent me here, i bought the highest plan, but i dont have it on nulledbuilds