Sydney pro and plugin the events calendar

i use sydney pro and i would like to use the plugin the events calendar.
The plugin is running but the display in the front is not in german, its in english, altthougt a german translate exist. The german translatefile is installed.

The Wordpressversion is 4.7.4.

Do you have an experience, what I can do?

Thank you very much and sorry for my poor english.

Greetings from Germany

P.S. The Theme Sydney pro is top!!

Hello there,

If you’ve properly set your site localization, but the translation doesn’t properly load, actually there’s nothing to do with the theme as the plugin’s translation file is stored separately from the theme and doesn’t managed in the theme. You should consult to the plugin’s author.