From what I gather from the bikeradar link is that the bike is a 10 speed 105 drivetrain with a BTwin 50/34 crank.
BTwin probably doesn’t make the crank and it is just a similar FSA, Origin 8, etc. crank. As such there are no published p/n specs like what you would find with a Shimano crank.
As mentioned above, you do need to measure the BCD and look for a matched set of 10 speed 50/34 chainrings that will fit. You have some latitude to mix-n-match, but for your situation just buy a set.
John