I added the config option require-permission-custom. Setting this to true will make all custom recipes require their respective permission to use them. Normally, all recipes are given to the player by default, and you would have to add a false / negative value permission to remove the recipe from a rank or person. So this is just a way to make it the opposite if you need to make recipes for only certain privileged people. require-permission-vanilla will let you do the same for ALL recipes!

Also fixed some problems making the plugin not function properly in 1.15 and should fix an issue causing recipes not to be loaded sometimes.