This could have happened while the boat was in a slip and not adequately tied up and went through a storm. Usually in a slip, the boat is tied to one side using fenders but if you don’t do a good job, the side where the boat is tied up can get banged up a bit.My big concern is why does the port side have a really bad crack yet the starboard side does not.
I know this can happen from personal experience...
Good luck, I really like those 21-22 foot Ventures.