Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi Alexander,
When do you receive this error message?
Do you find this error message while opening any Office application or any specific file?
You may repair Office 2013 using the following link and check if it works fine as expected:
http://office.microsoft.com/en-us/excel-help/repair-or-remove-office-2010-HA010357402.aspx
I hope the information helps. Let us know if you need further assistance.
Thank you.