Hi rahigraphics,
Welcome to our forum.
I checked your website and noticed a mix of Google Auto ads and manually inserted AdSense ads. Unfortunately, I cannot give any valid comment on why you experienced a revenue drop of 100% as long as the number of visitors kept stable.
The AdSense ad in your website’s header does not show up because you chose the responsive ad type, but AdSense cannot estimate the available space. Please, see this tutorial, where we describe how you can fix this problem.
Regarding your Auto ads, I could imagine you have too many on your website. I advise checking your AdSense reports and analyzing the auto ads statistics. Do the auto ads revenues come from all embedded ad formats, or are there only a few generating clicks? Cut off the low performers, and reduce the number of Auto ads on your website to increase the click prices.
Best regards,
Joachim