The incorrect information is: "The roller coaster would only have potential energy at the point labeled 'gravitational potential energy and kinetic energy.'"
This statement is wrong because at that point on the roller coaster, both gravitational potential energy and kinetic energy are present. At the highest points of the roller coaster, gravitational potential energy is maximized, while at the lowest point, kinetic energy is maximized. The point labeled "gravitational potential energy and kinetic energy" indicates that both types of energy are present at that position, not just potential energy.