Default my xperia sp deleting my file

Hi Dear Friends, I have a problem with my phone, the phone itself deleting my file
last night i watching movies with my xperia sp with Mx player pro 1.7.20 software and half the movies I watched Then once the movie came out mx player pro 1.7.20 Software then i restart my xperia and i went to my file them i saw my file is removed
I use this software in my phone
1-mx player pro 1.7.20
2 - advanced task manager pro 4.0.2
3 - es file manager v3.0.7.0
4 - boost my xperia
5 - disco light
7 - super su
8 - psiphon
9 - droidvpn
10-titanum backup pro
11 - locky pather
13 - xperia sd card mounter
Please give answer to Where is my issue
and i am sorry with my bad english