Bosch SMS50E02UE dishwasher - error E15, the low water indicator blinks

Dishwasher Bosch SMS50E02UE dishwasher error E15 (FD 8805), the lack of water indicator flashes, displays E15. I cleaned all the filters, checked the water connection, the drain also works. After plugging in, the pump turns on and pumps out the water, but E15 is on all the time and the indicator flashes. Does anyone know what this E15 error is? I have a dishwasher for 3 months, so it is under warranty, but maybe it can be deleted somehow. It has worked great so far.
Regards and thank you in advance.

Press and hold start for 3 sec. If it does not work, then only the service, because this error means an internal water leak.

Thanks, but unfortunately it doesn't work.
I just hope it's not my fault - I have young children and I don't know if they've spilled water on her, but I haven't noticed anything like that.

Disconnect from the socket and tilt it on your back, the water from the sensor will run out and then the dishwasher will start.

It helped . birre you are the master for me. Thanks a lot. Thanks to you and this forum, I saved a lot of time, nerves and probably money, because I would have to go to the site.
Again thank you very much.