Can you post the model number please.
Also is the washer still full of water?
BEKO. WM6143W. Not full of water but may be a little in drum/hard to tell.
Ok remove the plastic trim on the front at the bottom and there you will see the filter.
You need to unscrew this and pull it out and give it a good clean in there and make sure the pump isnt blocked at the back were the filter goes in.
But if theres water still in there you will need to drain it out. If you can pull the washer out and lower the drain hose into a bucket and gravity will drain it out.
Or get a shallow dish and put under the filter and just slacken the filter and drain it out that way.
Once all clear refit the filter and reset the control panel again and see how it goes from there.
Let me know what happens.