Hello Eric,
Sorry to hear this is not working for you! The error you've posted indicates an OS configuration and/or compatibility issue, so unfortunately I don't think re-installing Wwise from clean state would solve it.
The issue seems to stem from the Audiokinetic Launcher not being able to locate your Documents folder. Have you by any chance updated/changed configuration related to that folder prior to the issue's first occurance?
Please let us know if this helps resolve your issue. If the issue persists, I'll be happy to further investigate it with you!
Regards,
Oleksandr