Upgrading from 10.0 Build 10000

If anyone has come across this problem and has managed to upgrade, please let me know how.
I recently upgraded to 10.0 Build 10000. Help and about has the following information:
Your Version
: 10.0 Build 10000
Latest Version
: 10.0 Build 10005
I downloaded the latest version 10.0 Build 10005 with the file name as ManageEngine_ServiceDesk_Plus_10_0_0_SP-0_5_0.ppm
On running update manager I get the following error:

02-Jan-2019 08:23:56 [com.adventnet.tools.update.installer.UpdateManager] [INFO] :
02-Jan-2019 08:23:56 [com.adventnet.tools.update.installer.UpdateManager] [INFO] : Invoking UpdateManager in UI mode
02-Jan-2019 08:25:27 [com.adventnet.tools.update.installer.Common] [SEVERE] : ERR:The file that you have specified is not compatible with this product.