Problems with Office 2016 Notebook opening in Office 365

I have just started using Office 365 and am trying to open some existing Office 2016 notebooks.  I get to choose notebooks to open, click on the one I want (on this computer) and choose Open.  I pick my cloud account then Upload.  It shows Opening for a bit, then I get an error:  Microsoft OneNote Something went wrong and we can't do what you asked.  We're sorry  Error Code: 0x80004005.

I also tried creating a new notebook and I get the error:  Microsoft OneNote We were unable to create your notebook.  Check your internet connection and try again.  

My internet connection is fine.  Any suggestions?

Thanks in advance!