If you have the Eco light flashing then this is an error code and it means water has leaked into the base of the dishwasher.
What you need to do is pull the dishwasher out and lean it 45 degrees backwards and this will allow the water to drain out from the base there so you will need a towel for that part.
Once the water is out stand it up right and retry it and see how it goes from there. Fingers crossed it was a one off overfill and it should be fine. But if it does it again then theres somthing leaking under there and you need to find and fix the leak under there to cure the fault.
So try the above and see how it goes and let me know.