Please open this folder:
C:\Users\[username]\AppData\Roaming\MAGIX\[program name]\News Feed Info
There you will find a file with this name
MxNewsfeed.xml
Please open this file with a text editor, such as Windows Notepad. In the file you will find a "" area in front of which you will find a timestamp, e.g. "2017-01-23". Change the date in this timestamp to today and save the changes. The problem should then no longer occur.