This is an error code its showing which given the light you have this is error code E1 which is a water leak in the base which has activated the flood switch in the base. This is why you hear it gurgling as its the drain pump running all the time.
What you need to do is pull the dishwasher out from under the unit and from there lean it 45 degress backwards as this will allow the water to drain out from the base so you will need a towel for this part.
Once the water is out the flood switch will reset itself and this will allow the dishwasher to work normal again.
So retry it and see how it goes from there. Fingers crossed its a one off overfill that caused this but if it happens again then theres a leak in there which you need to find and fix to cure this fault.
If you need anymore info just get back to me.
Its normally held in with 2 screws at the top. If you open the door and look at the top on each side under the worktop there will be a screw there.
Then you need to remove the wooden kickboard at the bottom of the kitchen and then it should pull out from there.
If its not been used for a few days then the water could have dried up enough in the base to reset the flood switch.
So if it was a one off overfill which does happen on dishwasher then it should be ok.
But if it happens again then im afraid theres a leak in there still.
Your very welcome. Hopefully its fine now.
But at least you know what it is if it does it again.
Ok if you have the same light flashing then its a water leak under there.
You will need to pull it out from under the unit and remove the side panels and try and find out whats leaking under there. As it may be leaking onto an electrical part hence the electrics tripping out.
Let me know what you find.
Ok if its tripping the electrics then theres a short in there.
You need to find the short to stop it tripping.
You need to pull it out and lie it on its back and remove the bottom cover.
From there inspect the wires and check for any burnt wiring.
If thats fine then locate the heater and disconnect the wiring on there and then turn it on and see if it stops the tripping. If it does then the heater will need to be replaced.
But if thats not the fault then do the same with the wiring to the wash motor as them 2 are the most common parts to cause this fault that you have.
Check them if you can and let me know how it goes.