question again

recently i see i have a transaction in my wallet then suddenly disappear, whats going on??

the wallet address below is not mine

http://i330.photobucket.com/albums/l422/Enzone26/cryptyello/phcoinwalletstt_zps007b917a.jpg

my empty wallet

http://i330.photobucket.com/albums/l422/Enzone26/cryptyello/walletempty_zps6618f31b.jpg

no traces of transaction after all,.