Complex sentence: A contestant won $30,000 before the mistake was discovered by co-producer Adam Sandler (not to be confused with the actor; they are two different people); the game was repaired by having the lines removed, and the contestant started at $0.
Split into simpler sentences: A contestant won $30,000 before the mistake was discovered by co-producer Adam Sandler (not to be confused with the actor). The game was repaired by having the lines removed, and the contestant started at $0.