Error connecting to repository

Hi Experts,

I am trying to connect to our old repository where we have our tables and views. I am not able to connect to the repository(DEV and QA) and receiving the below error

MDM Version: SAP MDM 7.1 SP09

Repository Database: Oracle 11G R2

OS Version: Windows 7

Any help will be really appreciated and rewarded with points

Regards

Arun Sasi