PVOutput doesnt show data since the 9th of March

For some reason PVOutput doesnt work any longer retreiving the data generated by the solar panels.
What can be the cause of that?

In the API settings pvoutput.org was mentioned three times; i deleted two of them.
Afterwards in settings (pvoutput) in registered systems, edit, i authorized pvoutput.org (again) and it worked again!
I have a gap of 58 days; how can i correct that?

I did it manually. So iam up-to-date now.