Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Based on what the Tech Support guy to Pedro above, it might be nothing more than showing the wrong screen when you try to update and none are available. If so, it may update fine when some are available again. If not, based on what the software has done so far, the Online Repair should do it. If it doesn't, Microsoft has a bigger problem.