Solver Add-in not adding properly

Copper Contributor
I have attempted to add the Solver add-in with Excel multiple times to no avail. I've even Uninstalled and reinstalled O365 multiple times.

The O365 products install without error, but when I attempt to add the add-in it produces a Microsoft Excel pop-up in a foreign language.
1 Reply
Can you please show a screen-shot of this issue?