Electrolux ESL 48900 - all I need is to do the i30 error reset

I warmly welcome,
I urgently need to do an error reset on the Electrolux model ESL 48900 dishwasher. Someone knows how to do this. I give the diagram of the buttons:
1 - on / off button
2 - display
3 - touch field to delay program start
4 - touch screen for selecting programs in
5 - touch screen for program selection up
6 - touchscreen for energy-saving mode
7 - touch field of the Multitab function
8 - touch field
9 - indicators.
Thank you in advance for your help.

best regards

Hello
Clear the reason for the error first. If you do this, the error will disappear by itself.

The wife poured too much liquid and the foam was made. I have rinsed the dishwasher chamber many times but the pump is still working with i30 error, i.e. flood protection has been activated. How to fix it?

Unscrew the side of the dishwasher (right) and remove the water from the bottom tray.

Thank you very much for your help. I did as you wrote and the dishwasher works back properly. Best wishes.