get a plastic washing up bowl and pull the hose from the waste pipe and lay the hose into the bowl and see if water comes out. keep it as low as poss to the floor so it can gravitate. get someone to re-start the machine from a new programme, they usually always start by emptying. see if anything comes out. if not, switch off at the mains and blow hard up the pipe. this should gurgle in the machine and may clear a blockage. if all this fails, then probably your pump is either blocked or broken. mine did this and the grid that filters the water inside the machine which you are supposed to keep clean was full of food. so open the door and check the grid also.
alf