Hello, on October 20 2025 my page RPM and CPC suddenly dropped by about 70%. At first, I thought it was a system-related issue, but since there has been no recovery, I believe there is a serious problem. The drop is still continuing. I did not make any changes to my system or ad placements. My website is global and receives traffic from many countries. What could be causing this? I urgently need support because I am experiencing significant revenue loss.