Place a medium saucepan over medium-high. Add in vanilla, chia seeds, and one-half cup of coconut sugar. Bring to a boil and reduce heat to medium-low. Cover and let the mixture simmer until the berries are soft.
Mix coconut butter, peanut butter, and remaining coconut sugar in a large bowl. Next, add flour and oats to the mixture. Using your hands mix well until a crumble is formed.
Spray the bottom of a 9x13 pan with avocado oil. Use two-thirds of the crumble mixture and press firmly into the bottom of the pan, then spread the berry mixture over the top.
Sprinkle the remaining crumble mixture on top, place in the oven, and bake for 20 to 25 minutes.