Clicking a draggable object makes it to jump away from the cursor?

I'm very new to this and know literally nothing about code I'm just watching tutorial and trying to get this done for class. Anyway...I'm using the draggable droppable code and I only entered draggable in right now but when I click on the object, it'll drag but it first jumps like 2 inches away from the cursor. Why's it doing that and how can I fix it? Thank You!