I received a warning from Google Adsense earlier today, saying that violations found on some pages of my websites. And I needed to go to the “Page-level enforcements” section of the AdSense Policy Center to see more details.
Ad serving was restricted or disabled on those pages and it could affect my earnings. So, I headed to the Policy Center immediately to figure out how to fix it. However, I saw the error when loading this page:
We apologize for the inconvenience, but we are unable to process your request at this time. Our engineers have been notified of this problem and will work to resolve it.
After some research, I found out that this is not actually an error of Google Adsense. It is caused by the AdBlocker ad-blocking extension installed in Google Chrome. To fix this, I just needed to disable ads for the Google Adsense website. Everything works perfectly now and the page is rendered properly.