Report is wrong

Hi

Piwik is now running perfectly the last months, but on last Sunday I have a strange behavior. In one of my sides I cannot see any reports for a specific day. You can see that in the screenshot. I had a look in the database, the logs from the visitors are available, also I can see the visitors on the web interface. To re-run the report does not help.

Any idea how I can generate the report for the specific day again?

Thanks
With Regard
Harry

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