Office 365 ProPlus installations started to complain with the error message “We’ve run into a problem with your Office 365 subscription”.
The solution was to run the OSPP.vbs script located in the Office installation folder as in the screenshot below. Running the script with the /unpkey parameter removes the existing license and forces the user/client to re-register.
cmd as admin
cscript "C:\Program Files\Microsoft Office\Office16\OSPP.VBS" /dstatus
cscript "C:\Program Files\Microsoft Office\Office16\OSPP.VBS" /unpkey: ###prod-key###