No values shown in Weather display, and only current values in Weather Cloud

Hi, I am new in Weather display and tried to link my Netatmo weather station via Weather Display to Weather Cloud, it is shown that it is linked, yet I do not get a temperature curve there, and also in Weather Display when I open it, there is nothing shown.

I am using Windows 10 and Weather Display 10.37S Build 145.

I hope someone can help me. I am very untrained in IT things.