Indesit Washer/ Dryer Model WIDL102 - drum problem - snapped bolt?

hi I have a problem with my washing machine.
machine has stoped yesterday making loud metal scraching noise. Now, when I want to spin drum (by hand) it stops at one point. I have found out that there is bolt on the back (near the spining circle) and the bolt is loose - feels like it could be snapped or something else and now it is stoping the drum to spin round. What to do? Can you help?