Shreder stuck

The shredder won't turn on to cross cut paper, nor anything else. What I did was turn on the shredder and insert a piece of paper and the shredder stopped. I lifted the handle-- then pushed the handle back down, and it would not finish shredding the paper. I unplugged the unit from the wall, and carefully--so carefully picked out all the paper in the cutters.

Many attempts were made to remove any debrie from the blades and it still won't turn on.