Computer's bottom flap keeps falling off whenever I open the screen.

[Seyong_Chang]

Hi, so I've had my HP Envy 13t for a couple of months, and just recently, the bottom base of the laptop is coming off whenever I open my computer screen, to the point where I can see the internal components of the laptop since it opens up so much. I did drop the computer once before, but it only dented the side of the computer a little, and I didn't see the bottom base coming off at that point in time. 

What exactly is the problem with my bottom base? Are the screws/connections loose/falling out? 

To fix it: Is it possible to fix this structural issue at a PC repair shop or is it better to fix it myself at home? Is it even possible to order a replacement bottom base for my HP Envy laptop, remove the bottom base I have on right now, and put in a new one?  Buying a new laptop should only be the last, last resort for me, since I just got this new laptop months ago. 

I'd be extremely grateful for even a little bit of help for my very infuriating issue!

[Seyong_Chang]

Here are some images of the bottom base falling off. I am able to pop the bottom left base back on after closing my laptop screen, but the bottom right base is stuck slightly open and I am unable to pop it back in.