Okay, I might have a solution that I've found in an old post in the french forum: close any other active program in your taskbar: mine was Firefox, I closed it before startind the game and... 3 matches in a row without a single problem.

Hope this helps.

Even more info to be found.

Click Here

Support says

'game may cause some crashes after first launch. Maybe 5-10 times on some hardware configurations.
Also maybe his videocard has overclocking mode on.'

Support also says:

reinstall vcredist in Panzar\PnzTools\Redist\ directory under Admin rights.
Reinstall DX - from Microsoft Update center.
Change game directory (it REALLY works in some cases :^) ) or move it to the root.
Emm... reinstall OS could help at last

Nah, not gonna do none of that, all my others games runs perfectly fine so I don't think it's my computer.

Now, this might help the devs, the problem might be a memory leak, something similar happened to me when I was playing SWTOR a while back, game suddenly closing without a warning, until Bioware found the problem and patched it, saying it was something related to how the game was using the memory.