Jros, i moved you of of computers to DISHWASHER.
the appliance needs service. call for service;. in you town.
no service manual/?
how long have you used it, 1day 1 year? ? or first ever AC power failure ever by you.
it might have battery inside, to retain settings, in the control head
some home appliances, a AC power service entrance, AC POWER loss do lose settings or only time of day. and must be reset. only reading the manual cures that or do the test.
why not call the factory , and ask
USA is here (if not USA click country icon top right of there page.
ask them for answers to that question.https://www.askona.com/dishwasher