Hello Desita,
if you can not generate EAs for some reason for any currency pair or asset, you need to find the reason for that.
What you need to do first is to remove the acceptance criteria, and run the generator. If you do not see still strategies, it means that their is an issue with your Historical data that you have imported.
If you see strategies, start setting up the acceptance criteria, but slowly. With every new criteria added, run the generator. This way you will see what is the reason for not getting strategies.