[Solved] Game and MCreator crashes when I right click item

So I'm making an item (not block) that has a crafting GUI. But when I right click the item, the gui opens but then Minecraft crashes along with MCreator.

Here are the relevant procedures.

Slot 0-8:

https://i.imgur.com/AkLez8f.png

Slots 9:

https://i.imgur.com/yIMdEsQ.png

Gui Procedure Triggers:

https://i.imgur.com/pmFbZxj.png

While GUI is Open:

https://i.imgur.com/v3RCpBE.png

When GUI is Closed:

https://i.imgur.com/cLLNZFG.png

Slot 9 - GUI When Item is Taken:

https://i.imgur.com/KV4sJ4q.png

When Item (The item in question) is right clicked:

https://i.imgur.com/wZpgjZt.png

Hopefully this helps because I'm confused. I was following a tutorial from NorthWest Trees Gaming.