LG optimus L90 and snap chat help!

[AC Question]

I recently got a LG optimus L90 and i have the snap chat app which works fine except I can not add photos from my gallery. I have been looking online for how to fix this and its very frustrating and complicated. Can any one help me figure this out and let me know what I have to download or do to be able to do this. Thanks!!

 

[B. Diddy]

Are you trying to share Gallery photos using Snapchat? Select the photo in Gallery, tap Share, and select Snapchat.

 

[James Stone1]

Downloaded snapchat its been working fine. Now the rear camera doesnt work, it is just a black screen, the front camera works fine. When i click on the camera app both the reverse and front camera work fine. Its only snapchat. Ive tried uninstalling it etc but no luck. Any ideas?