Exception "unknown or bad timezone" loading from m.wetterdienst.de

[hardmooth]

Recently I get this exception when opening the app. It happens everytime. Rebooting didn't help.

I am using version 4.9.1, but had the same error before updating. But also it worked without exception on my device some weeks ago (don't know the version). I am using android 9.

If you need any more information or logs, please describe what and where.

Thank you Hartmut