Sounds like you over-drove your screws. Did you lower the setting of the drill clutch? I usually set mine to 12 – 14 depending on the hardness of the wood. You want the screws to seat firmly, and then stop.
Were you using the right pocket screws? The Kreg system uses truss head screws (the screw heads look like they have a washer). I once tried to use a different type of pocket screw and had a problem similar to yours.
You can probably save your work by backing out the screws, gluing a filler like a matchstick into the threaded part of the hole, and carefully re-driving your screws.
-- Adversity doesn't build character...................it reveals it.
