The ads.txt file was successfully updated, however, the message has not disappeared from the dashboard.
Please ensure that all the ads.txt lines have been added correctly and that they correspond to the appropriate domain. Once this has been confirmed, try clearing your browser cache and cookies, then log in again.
Please also note that even if the ads.txt lines are added correctly, the message may still appear on the dashboard for a short period. It can take up to 1 hour for the system to update the information about your website.
In case you tried everything and the message still shows, please contact your manager to solve the issue.