Hello @deepakkv,
Error "08P01" means there is issue when setting up connection between your notebook instance and the Query Service.
Did you try to execute simple "qs_connect()" in your notebook to check the connection?

If this one is also not working then there is issue with your AEP instance. You need to check with Adobe support.
Thanks.
Parvesh.
Parvesh Parmar – Adobe Community Advisor
https://www.linkedin.com/in/parvesh-parmar/