Pulse oats, almonds, and coconut flakes in a food processor until fine crumbs form; transfer to a bowl and set aside;
Add the rest of the crust ingredients (soaked dates, coconut oil and agave syrup) to the food processor and combine until you get a smooth sticky paste;
Transfer the paste to the dry ingredients bowl and combine them well until it starts to form into a sticky dough;
Transfer the dough to the springform pan and press it down into a pie crust; use the bottom of a glass to press it down into a neat layer;
Place the crust into the freezer for 30 minutes to set;
Meanwhile, put all filling ingredients into a blender or a food processor and blend until creamy and smooth;
Remove the crust from the freezer and pour over the filling; return to the freezer to set completely for about 4 hours; overnight is even better;
When the cheesecake is set completely, remove it from the freezer, remove the springform pan and place it on a cake stand or a plate; let it thaw at room temperature;
In the meantime, blend the berries for 1 minute then strain through a sieve;
Add the strained sauce and lemon zest to a small saucepan and simmer over low heat about 10 minutes, until it thickens a little;
Turn off the heat, add the rice syrup, stir well and allow to cool completely;
Spread the sauce over the cheesecake top, slice it and enjoy!