The upgrade failed because of a missing file Gettimezone.

Please navigate to the application folder ManageEngine/ServiceDeskPlus-MSP/tools/postgres/bin

Check if there is a file called Gettimezone 

If the file is already available in the above folder please follow these steps

1.  Stop the Manageengine ServiceDesk Plus-MSP application

2. Go to the directory ../ManageEngine/ServiceDeskplus-MSP/tools/postgres/bin. Move the existing 'gettimezone' file to a different location outside ManageEngine installation directory.

3. Rename the 'gettimezone_64' as 'gettimezone'.

4. Initiate the upgrade. This should do it.