Who to blame? The CTO or CMO?

So i started working for a new dating app that needed help launching a sugar daddies dating app in Switzerland. Now Sugar daddy dating is a very niche service so you caot advertise on Facebook and Instagram. You have to find very smart worded methods and ways to promote it. Nethertheless We managed to get thousands of registrations. In the month of April alone i did 2.4 million impressions and 19,000 web clicks for a cost of 3000 swiss franks.
However there was some...

Who to blame? The CTO or CMO?