Outlook Application Error - "Something is wrong with one of your data files and Outlook needs to clo

Issue:  After my user has launched outlook and the application has opened fully it will display old unread emails and then close.

Outlook then displays the below:

"Something is wrong with one of your data files and Outlook needs to close.  Outlook might be able to fix your file.  Click OK to run the Inbox Repair Tool."

I then continue, outlook attempts to repair the file that is causing an issue but then nothing happens. - Re-launching outlook takes me back to where I was with Outlook loading, closing and displaying the message above.

I have tried to uninstalled office 2019 and deleted the relevent files to the programme and attempted to reinstall however to no avail as the same issue continues.  I then tried the below fix:

Launch Regedit through RUN Command browse to:

<HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\PST>

Delete the followng Keys:

"LastCorruptStore"="C:\\Users\\user.REDMOND\\AppData\\Local\\Microsoft\\Outlook\\*** Email address is removed for privacy ***"

"PromptRepair"=dword:00000001

When re-launching Outlook again I face the same issue as I did originally.