I have called my site by using my search engine. I have logged into my server next day. There I see on the site dashboard the followed graphics:
Last visits graph
Visits by server
In these graphics enclosed all visits until yesterday. There is no problem.
In the followed graphics:
List of Keywords
List of external websites
Best search engines
I have no data. There I have the messages
“no data for this table”
There is the problem. Why the serve have no data although I have called the site.