Zoom Outlook Add-in has no valid digital dignature

[mloh]

I tried to add the Zoom for Outlook-Add-in to my Office 365 Outlook. I followed all steps, at the end I'm receiving the following error message:

 That didn't work

This Office-Store-App cannot be installed as it does not have a valid digital signature.

I tried several times, and it worked for years before. Can you please support, the add-in is an essential efficiency driver for my daily work.

Thx!

[Bri]

Hi @mloh! I just realized you never received a response from the community. Are you still having trouble with this? 

[mloh]

Unfortunately, the issue continues to exist and I'm really missing the Add-in as it was providing a lot of efficiency to my daily work.