Quickbooks support SUCKS! The reason it is not working is that they want you to purchase their Intuit Data protect (another subscription, go figure!) They make it so you, the average consumer cannot simply use the product and back it up yourself. You NEED them and their astronomical price tags to have anything work properly. Quickbooks is for Large businesses that can afford the crappy service that Intuit provides and then be able to pay for all the support needed to keep it working.
