I need help. There is an issue with my Quorion CR 30T2 cash register. I'm teaching a new person how to use the register, but I got a bit distracted. When I returned, I saw an error message on the screen, and the register wouldn't let me continue working normally. I haven't had any customers yet, but if I don't figure this out quickly, I won't be able to process transactions. I'm trying to find the manual, but I believe it is no longer in its usual place. Does anyone have the instructions or can tell me where I can find one online?