Make sure the washing machine plug is fully inserted into the socket and not loose.
Test the socket with another small device like a phone charger to confirm power is coming.
If the machine door is not fully closed, the machine may not start for safety reasons.
Turn the machine on again and press start once more after a few seconds.
If the machine still does not respond, the issue may be internal and technician support may be needed.
Always use a proper power socket and close the machine door fully before starting.