Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
There are several things to be done. 1: does it have a cash-box? if so, putting it into freeplay mode can get the cashbox to authorize free play.
2. is there any sign it is 'broken' or non-functional? e.g. lights not coming On, etc. ?