Original Coder from this Ressource was Speentie8081.

I just reuploaded it and changed a bit code!

You need ProtocolSupport:
https://www.spigotmc.org/resources/protocolsupport.7201/

Since 1.13, chests are remapped to enderchests in order to work around visual and mechanical glitches that can occur in older versions when double-chests are next to each other. This addon reverts this change, instead preventing all players from placing double-chests next to each other - just how it worked in older versions of Minecraft!

Bug Reports or Any other Help Requests with this plugin please use Discussion area!