When replacing a .pst file. Make a Copy of the File you are going to use and use the Copy. Then, if anything goes wrong you still have the original file.
I am no expert ~ so wait until someone tells us whether this is right or not.
Delete the corrupted .pst file and then import the new .pst file
If nothing helped, then I would recommend to visit https://social.msdn.microsoft.com/Fo...?forum=outlook