Final Cut Pro X 10.4 High Sierra

Hello guys.

okay i was doing a little project. When I was going to export it it was doing alright, it went up to 44% master file export then suddenly Mac freeze, the fans got loud and I had to turn off Mac by click hold button.

I open fcp again, export --> 55% then system restarts suddenly...

open fcp again, starts loading project --> restart again

Open FCP, loading project --> Mac restart

on and on and on and on...

this is new... Sierra and preview version of fcp worked well .. anyone has experienced something like this before?

if so, there are any fixes?

im currently installing final cut again