I saw a graph like that in my setup too. When I set "Time scale" to "Adaptive" the graph was shown correctly. 

Hi,

no, it's the only error.

There was no CDN setting. I installed the CDN-Enabler plugin and activated it with default settings.

No change in appearance of the graph.

Oh, sorry if I was unclear, I would like to say Weather Station CDN. It's in Weather Station > Settings > System > Resources > use public CDN..

aah.. ok..

but still no change in the graph  ???? 

So the error is not due to the .map file missing. I think it's something obvious but I don't see what. May I have public access to this server (not admin, just anonymous)?

Unfortunately my internet provider uses DS-Lite and not IPv4/IPv6

I never managed to get my local stuff online.

Would it help to .zip all the WP content and send it to you?

.. or Teamviewer?

Hello! Unfortunately, it will not help (I must have "live" access to the site)... Nevermind, we will do it another way, because I'm persuaded it's a configuration issue, and I want to help you. If you have time could you, in the shortcake configuration, "play" with the time scale setting and tell me if there's something different.

Jeah...  ???? 

When I set it to "Adaptive" I see the graph!

It has this problem with "automatic", "fixed" and "none".

Adaptive is good anyways, or?

Thank you verry much! I'll donate to the organizations you support.

Adaptative is to have an "automatically-scaled" time line. It's not good for all: for daily charts, I prefer "fixed" or 'auto". 

If it solves partially your issue, it shows you have a true problem in your datetime config (WP and/or PHP). Are you sure your Timezone is correctly set in your PHP environment?

To be more precise, are you sure there's something correct for the 5th parameter of this page?

In fact,

there was no entry in the php.ini on the Rapberry Pi

I added Europe/Berlin...same settings as in WP.

But still the same problem. Even after full reboot.

Could you verify this parameter is correctly enforced?

You can see it in the Weather Station dashboard, at the bottom of the page you have a box called "Versions", follow the link named "server configuration details". In the page now opened, go to the "date" section of the PHP configuration panel and take a screenshot of this section (all the parameters and directive bellow "date"?

Thanks

Here the screenshot. Ok.. semms to be set to UTC. 

I figured out that I made a mistake in setting up the PHP.ini.  I did not erase the ; in front of the line 😉

Now I see Europe/Berlin in the "server configuration details" (screenshot)

But now not even "Adaptive" is working anymore. Same kind of empty graphs with all "time-scale-settings"