I can take movies but not photos, What did I do?

I used the camera to take vacation photos for 6-7 days. Them a bunch of feature icons came on the screen and I press the shutter and nothing happens. I switch to movie mode, press the shutter and get an mp4 file. What did I do??? no obvious damage, I didn't drop it....

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 1
crwdns2934285:0crwdne2934285:0