Hi,
please download and install the latest version of the Navigraph Navdata Center. According your screenshot, you’re using an old version.
When you have installed it, you should have 3 navigraph-folder. One for the In-Game panel (to bring the charts functionality directly into the MSFS) and two packages for the navdata (base and navdata) which are contains the AIRAC updates.
So, please install the latest version and try it again.
Here are a helpful link for the update of the Navigraph Navdata Center:
Hope that helps, when not please let me know …
HAPPY NEW YEAR 
Cheers
Richard