Domain web statistics page in Domains > example.com > Web Statistics is showing:
This is the placeholder for Web statistics. If you see this page that means that statistics service has not run yet on your server. Statistics service is typically set to run once every 24 hours. If you do not see a change to this page in the next 24 hours contact your server administrator for assistance.
web_statistics_executor.exe utilities' version in
%plesk_bin% directory is different from current Plesk version: right click on
web_statistics_executor.exe file and open Properties > Details tab > Product version
Incorrect versions of
Contact Plesk technical support to replace
web_statistics_executor.exe utilities with correct ones and to recalculate statistics for affected domains.
If the symptoms are different, check the following article:
#213957045 runtask.exe scheduled tasks fails with SMTP exception, statistics page shows default page