Applications disappearing in Lite 4.2 beta Viber Playonlinux

[newonlinux]

I am noob, but not so big. I install lite and use him for few days, but at least once a day some aplications just disapear.
No trace like was never before installed. For example right now playonlinux what I install few times from Synaptic.
Look on my screenshot, I start game but cant go in because playonlinux disapear.