Random Restarts during day

[rmmcwh]

Here is the latest log:
Untitled.tiff

Still not sure. I rebuild permission daily using Onyx.

 

[cap2587]

I am getting the same random restarts and would love to know what is causing this. Could it be something hardware or more of a software problem. I tested all of my RAM and it came back working fine. I have Yosemite installed. Appreciate any help on this topic.

 

[P1LGRIM]

I am getting the same random restarts and would love to know what is causing this. Could it be something hardware or more of a software problem. I tested all of my RAM and it came back working fine. I have Yosemite installed. Appreciate any help on this topic.

If you have Yosemite installed why are you posting in Lion Desktop Support ?