Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
As a workaround try these steps and check if it fixes the issue
1. Click Start, click All Programs, click Microsoft Office, click Microsoft Office 2013 Tools, and then click Microsoft Office 2013 Upload Center.
2. In Upload Center, click Settings.
3. Under Cached Settings, click Delete cached files.
4. When you are prompted, click Delete cached information