Why is my android phone randomly unninstalling programs?

[AC Question]

So I got this cell phone Huawei Y625.
Yesterday I fell asleep while playing a game on it and today I woke up and the battery was of course empty.
Crazy fact is, as I turned it on, I noticed that some icons are missing. After a deep search I found out that I am missing 10 programs, those programs are not on my telephone's memory anymore!

 

[the tall guy]

Hi, what were the apps that disappeared? I haven't heard of this happening before - sure the shortcut can disappear from the homescreen but not apps uninstalling.