Google has set ad traffic restrictions for AdSense accounts, how to solve them?

1. Received an email: Set ad delivery restrictions for your AdSense account. Dear Publisher: Hello! We recently found invalid traffic issues in your AdSense account. In view of this, we have set ad delivery restrictions for your account. We will continue to monitor your traffic and automatically evaluate and update this restriction accordingly. as shown in Figure 1

2. Check the details in Google AdSense’s Cooperation Specification Center. 25 June 2023 Current status Due to invalid traffic problems, the ad serving volume of your account is currently limited. as shown in Figure 2

3. In Google AdSense’s report, starting from June 25, 2023, the number of page views has remained the same, but the number of ad impressions is a cliff-like decline. as shown in Figure 3

4. There is no appropriate solution for the time being, because I did not deliberately create invalid traffic. Tip in the email: This type of ad serving restriction usually does not exceed 30 days for publishers, but in some cases, the impact time may be longer. Decided to wait 30 days before continuing to observe the ad display. as shown in Figure 4

5. After waiting for about 10 days, the advertising limit has been cancelled, and the number of ad impressions has been restored to the level before the delivery limit. as shown in Figure 5