Jerooski

Best for survival server! A really complete server shop, compatible with 1.15 https://www.spigotmc.org/resources/shopgui-1-7-1-15.6515/

Both of the versions are broken, Voxel Sniper works ok, but cannot undo things. Fastn Async Voxel Sniper doesn't do anything.

I've tested a Shop plugin, it's the easiest out there and very easy to use. However there is a bug with the version in minehut, the option to make items in the gui commands is broken, it just displays your balance and its been shown in the spigot thread that the latest build has resolved this. https://www.spigotmc.org/resources/shop-conjurate-now-in-1-14.66651/