My screen goes gray

So basically, I dropped my iPad in the kitchen, and went to a mall place to get the screen fixed. Unfortunately, the glass they used was just a smidge too big so the right side by the home button is slightly raised. You’d think it’s no big deal, right? Well, when I apply pressure to this spot, the entire screen goes gray. Completely opaque. Any audio continues playing, but no visuals and no interacting with the screen. I have to turn it off and wait for a few seconds to fix it. Is this a concerning issue? What do I need to do to stop this from happening?