This update brings about an admin locking command allowing you to protect your crafting tables that you put in spawn or wherever you like. The command is
/publiccrafters lock and to use it, all you have to do is look at the table you want to lock. The permission to use this command and access locked tables is publiccrafters.admin.
I have also fixed the orientation and offset problem where negative and decimal numbers didn't work. It was due to an improper regex where I used forgot to check for the decimal and dash.
Additionally, for materials on the table, please be sure to make sure the material you are using is the item form, not the block form, such as SKULL_ITEM instead of SKULL.