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If you are able to install the software, but the system is not allowing you to authenticate, try rebooting and reinstalling Office ProPlus. View the Uninstall Office for Mac Microsoft support article to learn more about the process.
Follow the troubleshooting steps outlined in https://support.microsoft.com/en-us/office/how-to-remove-office-license-files-on-a-mac-b032c0f6-a431-4dad-83a9-6b727c03b193 for additional assistance on removing license filesIf you receive an Office error saying your account doesn’t allow editing on a Mac computer, view the Microsoft Office Error Prevents Editing on Mac page for instructions to remove your Office license then reinstall WVU’s license.