upgrading Metalogix Archiving software failed....

Hi,

we have archiving software version 8.0.136 on server 2012 now. 

I'm trying to upgrade the software from version 8.0.136 to 8.3 but I received the below error msg.

CreateApplication: Creating application exchangePAMConfig failed!\n ErrorInfo (-2146368492)

could you help me with this?