Hello Nugs,
This error message is common if for some reason your Visual C++ Redistributables are corrupt, not updates, or are missing from your games installation.
There is usually a folder names 'support' in your games installation folder, where you can find the particular Visual C++ api .exe file that the game uses, you can double-click on and reinstall which should resolve this problem.
You can redownload the Visual C++ Redists here >>
32-bit:
https://aka.ms/vs/16/release/vc_redist.x86.exe
64-bit:
https://aka.ms/vs/16/release/vc_redist.x64.exe
Please make sure to install both the 32-Bit and 64-Bit versions of the Visual C++ Runtime api's that you arte missing and reboot your PC afterwards, before trying to relaunch the game.
-Ubisoft Support