@Tim Apologies for the delay in response and all the inconvenience caused because of the issue.
Can you check if you have activate shared computer usage of O365 with this DSVM. You can look at the details of shared computer activation for O365 here.
Also you can check which OS you are using if it is Windows or Linux since as per this article Organize & present results for Microsoft Office ProPlus with shared activation: Excel, Word, and PowerPoint are not available for Ubuntu.
This guide might be helpful as well to troubleshoot your issue.
Hope it helps!!!
Please 'Accept as answer' if it helped, so that it can help others in the community looking for help on similar topics