Office 365 app on Chromebook shuts down on start

I wonder if anyone else has encountered this problem as well?

Every time I try and open the Office 365 app, it automatically closes the application within a second.

I have tried restarting the computer and reinstalling the app several times.

It is a brand new Chromebook Lenovo Yoga with a clean installation.

It has worked flawlessly for about 1 month and suddenly while working in a document, it refused to open up a PDF. Therefore, I restarted the computer after saving and closing down everything as I should.

After that it keeps closing and I am unable to use the Office 365 app, downloaded from the Google Play store, thereby also lost access to all my notes in there, though other documents can be accessed through a browser.

The other Microsoft Office applications I have installed work just fine; Outlook, OneNote & OneDrive.

The Office 365 app is the ONLY application on my Chromebook that there is any issue with, so I would love to avoid a factory reset of my Chromebook, for it to "might work".

Another interesting thing that happens is that after I try, I can hear my processor get a workout and the fan goes crazy, which is the first time I have ever experienced this computer to make any noise what so ever.

I use Office 365 with a license from my university study, so as of now, I have lost a good amount of notes but are simply working in Google Drive, for the time being, losing the advantages of using a common platform with my study groups.

I sincerely hope that we can find a fix for this issue.