Good evening Norbert and welcome back!
Thank you for reaching out to us.
I would love to help you with this topic.
As a first troubleshooting step, could you please provide us with your complete system information in a private reply using the instructions found in the following link?
https://theeventscalendar.com/knowledgebase/sharing-sys-info/
Secondly, it is possible that:
- The language files you are using might need updating.
- The Find out more string comes from your theme and not our plugin
You can always find the latest German files here: http://translations.theeventscalendar.com/projects
Typically, the translation is 100% complete in German, so you should not need to translate anything (unless you want customize some of these strings).
Could you please send me a copy of the latest version of your WordPress theme / child theme via a link to a .zip file link (stored Dropbox or Google Drive) so that I can run some tests on my end ? I recommend a private reply for that purpose.
Please ensure you are using the latest files as found on your actual website.
This way I will get access to any updates or customizations you might have made.
Let me know if that helps.
Have a great day!
Geoff B.