In the bowl of a crockpot, combine the lentils, onion, ginger, garlic, carrots, red pepper, tomatoes, veggie broth, 1/2 cup water, the harissa, paprika, cumin, cinnamon and a large pinch of both Kosher salt and pepper. Stir to combine. Cover and cook on low for 6-8 hours or on high for 4-6 hours.