Pollo Guisado in the Crockpot

Name: Pollo Guisado in the Crockpot
Ingredients: 1-½ Tablespoon Paprika; ½ teaspoons Cinnamon; ½ teaspoons Cayenne; 1 teaspoon Garlic Powder; 1-½ teaspoon Salt; 1 teaspoon Pepper; 2 Tablespoons Extra Virgin Olive Oil; 4 whole Chicken Thighs, Bone-in And Skin On; 2 Tablespoons Vegetable Oil; 1 teaspoon Sugar; 1 whole Large Onion, Julienned; 2 whole Bell Peppers, Any Color; 4 cloves Garlic, Minced; 2 Tablespoons Tomato Paste; 2-½ cups Chicken Stock, Divided; 1 teaspoon Cornstarch; 2 Tablespoons Cold Water