My AdSense revenue seems to be at riskFor the past few days, there is a message displayed on my Google AdSense page that says: "Earnings at risk – One or more of your sites does not have an ads.txt file. Fix this now to avoid a severe impact on your revenue".
I tried to find out the reasons by clicking on the options provided beside the message but I found it a bit complex. Here, I have provided the screenshot of the message on my AdSense page to make it clearer.
Please guide me to sort out the issue.