No translation of the fieldnames (city) into German

My problem,
I use Joomla 3.6 and JEM 2.2.0.
After installation of the german language file the field names (name, venue, city ect.) were not translated in the eventlist.
The tooltip in eventlist is translated (Date - Klicken um diese Spalte zusortieren) correct.
Who can help me?

Can not be.
Did you change something inside this file and did you some mistake? Reinstall the language file without changing anything and retry

Hi Werner,

are you sure you have also installed the JEM language pack de-DE.JEM-languagepack_v2.2.0.zip you'll find on our download page if scrolling down? The text "Date - Klicken, um diese Spalte zu sortieren" is not complete translated. The part "Date" - coming from JEM - is not translated, only the other part - which comes from Joomla. (und sollte eigentlich "Klicken, um nach dieser Spalte zu sortieren" heißen, da ja bitte die gesamte Tabelle sortiert werden soll, und nicht nur diese eine Spalte; das gäbe ein ziemliches Kuddelmuddel - aber das nur am Rande...)

I think, at first I installed the wrong translation file, but then I found the correct file ( de-DE.JEM-languagepack_v2.2.0). Under component/com_jem/language/de-DE/de-DE.com_jem.ini I can find the following Version:
; @version 2.1.7
; @package JEM
; @copyright (C) 2013-2016 joomlaeventmanager.net
; @copyright (C) 2005-2009 Christoph Lukes
; @license www.gnu.org/licenses/gpl-2.0.html GNU/GPL

Is there a posibility to deinstall the languagepack. I tryed to install the Version 2.2.0 twotimes.
Thanks for helping me!

maybe it's looking for the file in the default joomla language folder.

What happens is you copy that file to the folder: .../language/de-DE/ ?

When I edit the "de-DE.com_jem.ini" I can see the correct information. So I think the error must be somewhere else.