How can i fix My Nyborg 2400 Washing Machine 40KG?

The Machine Nyborg 2400 that i have, stoped working and this is what happend first it gave a msg saying that door is open and the door was closed we opend the door and reclosed it again then it gave the MSG ( secure Hopper) . we tried to swich it off and then ON againg but still give the same MSG ( Secure Hopper), do you have any iedia about that??
Thanks