why its not working?......................................................................................

The plugin, in itself, is good. But why does it put featherfall on a sword? Enchantments are put on items that do not match the specific item. And with a fishing rod it can cancel enchantments and would be rather bad. It would be good if the plugin looks which enchantments on which items belong and then against payment, money or items or EXP, then the right enchantments on the respective item put.