Hi,
I had the same error. In my case it was the .Net Redistributable Package and the Runtime DLLs from SAP that are missing on my client. On another client there are two many different versions of the Visual C++ Redistributable Package. I uninstalled all unnecessary versions. Here is a screenshot of my installed packages with working SAP Dashboard:
You can download missing parts for free by microsoft. You can also uninstall all other versions to avoid issues.
Hope this helps!
Best Regards,
Benni