Intuit Plugin stopped working - no idea why -today

Hi, we have an OPENCART web site and for some reason, our orders are still coming through but has been "disconnected" from the INTUIT plugin and gateway system, the orders are not getting charged. Intuit has been of NO HELP at all. I need to get this fixed, please help, must be done TODAY!! Also for the part where you need to access her intuit account you MUST use teamviewer to connect to my computer. She will not give this information out. I need someone who is EXPERIENCED in open cart and INUTUIT plugin