Maximo doesn't display start center after successful log in

Issue: End Users are able to successfully log in into Maximo, but after log in - a white page is displayed.

Solution: Initially I thought  it  was due to insufficient hard disk space, but my assumption was incorrect.

Then one of my colleagues advised to me to try navigating directly to work order application by typing in app=wotrack in the address bar - it opened up the work order application!. From there, I navigate to start center and the start center displayed.

On the start center, my name wasn't displaying and displays as "Welcome,{null}". So I navigate to person application to check if my name was overwritten. To my surprise my personid doesn't exist anymore in the system, whereas my user id still exist in the system. Due to this reason, I was able to log in into Maximo, but couldn't access my start center as the personid doesn't exist.

So I created my personid and since then I have been able to successfully acess start center and navigate to other applications using the Go To menu.

Later we identified the person records were deleted from the system due to the replication configuration.