JCInventory, Grid based jigsaw Inventory for your projects

I am also having this issue. Followed this video: https://.youtube.com/watch?v=XtHvfT9oZxU

I get the inventory to come up, but when clicking the inventory I instead fire my weapon because it thinks the widget is not a valid option to click? Please let us know what is going on. If you need more information let me know what you need.