Adding Variations BACK

Hello wordpress world.

I once had the ability to add variations on products. Every time I added attributes, then variations I would get 2 pop up windows with some stupid notification that was incredibly annoying each time I added a variation. Once I received a window asking me if I didn’t want to receive the pop up each time I tried adding a variation, so I clicked the check box and closed the window. Although I can add the attribute, now I can’t add variations. How would I add this feature back so I can add the variations?