Why is the grinder not stopping?

Hi, I have the Magnifica ESAM 3300 working well until yesterday. The grinder doesn’t stop now and “spits” the coffee directly in the collection box for the used pucks. I can make a coffee if I use the pre-ground coffee. Please help.

crwdns2893858:0crwdne2893858:0 crwdns2893862:0crwdne2893862:0


crwdns2889612:0crwdne2889612:0 0