Correctable or not

[PP]

In the senior girls championship tournament game last night, my partner and I encountered this situation. We were in the fourth quarter and A1 got called for a personal foul. The scorer tells my partner that it is one and bonus. So therefore we administer the free throw. She (A1) shoots and misses and play goes on. While B1 is bringing up the ball and makes it to her frontcourt the timer blows the horn repeatedly. Uh! What is going on here? So B1 with the ball starts to walk. So tweet ...travelling violation. Oops! the coach goes wild. So I go to the scorer's table and ask what is going on with the buzzer? The scorer tells me that is not one and bonus but double bonus! Well, since the ball is dead at this point and it has not become alive again I decided to go back and let A1 shoot the second free and let the play continue from this point. Is this correct ?