Can add enchants to armor in single player, but not multiplayer

[elementalvenom]

Hey so I made some armor and everything seemed fine in single player as I was able to add every enchant to it(and still am)

but I installed the mod on a server and try to add the enchant and the red X on the anvil just stays there. It doesn't say anything about levels or anything AND being in creative mode doesn't help. Any ideas?

 

UPDATE: So it only does that for enchants I craft(I added crafting of a few of them) the code I use is this:

 

ItemStack magicBook = new ItemStack(Items.enchanted_book);

magicBook.addEnchantment(MainItems.finalStandEnchant, 2);

GameRegistry.addRecipe(magicBook,new Object[]{"XXX","XZX","XXX",'X',Items.diamond,'Z',Items.book});

 

It doesn't let me apply the crafted one, but when I spawn the exsact same enchant in it lets me apply it. What am I doing wrong?