Hi there, I'm new to playershops (https://www.spigotmc.org/resources/playershops-gui-bsp-allow-players-to-create-public-shops.29568/) and just added it to my server, I also installed BSP like it said to, however, not whenever I use the designated command /ps, it always says: "An internal error occoured". Now the plugin says its near ready to use so why have I broken it?