If your barrier coat is intact and the bottom paint is peeling off of the barrier coat there is a compatibility problem between the products. If the barrier coat is also peeling off and you have bare gelcoat I would think you would want to remove the complete system, strip the mold release products and start the process over. You may want to go back to the people that did the barrier coat and bottom paint. If it is only one season old I would do some complaining.