On checking the tomcat log shared I could observe the below entries,
Failed to create agent key schema due to: Failed to create database '..\data\connections'
To resolve this issue, I would suggest you to try out the steps shared in the below KB article,
Let me know if that helps, thanks!
Hello, Akshaye. Thanks for your reply.
That KB is not useful to me because the "connections" folder doesn't existe within Data_Integration_Server/data.
All the services are up except DIS service. And no "connection" folder exists within "data" folder for I to delete it and restart the agent. I have lost 1/4 of free trial license without being able to practice a thing.