Kernel Panic Macbook pro 13 Early 2015

Hi everybody,

I've bought a macbook pro 13" early 2015 at the end of march, and after only some days a kernel panic error appeared:

https://www.dropbox.com/s/yjyyqvynlxqt2qa/Kernel%20Panic%20Report.rtf?dl=0

Today, while I was watching an internet video the system stopped working and I had to force the restart of the pc, I don't know if the problems are linked, but I think yes because the only difference is that, for the first problem, the pc auto-restarted after it stopped working, instead the second time I manually did it

Could you tell me what's the problem?