Phone [Q] My front facing camera is not working!

I think my front facing camera is broken or the file is corrupt, but every time I try to use the front facing camera, it just freezes, no messages saying there are errors! Please help me determine whether the front facing camera is broken or a file may be corrupt.

I think it happened after I tried to root it, but I rooted it incorrectly and so I think it may have been from bad rooting. BUT, I did drop my phone on concrete two days after I rooted incorrectly. During that time, I didn't try to use the front facing camera until a week after.

Thank you!