Somehow I dropped off the money, chose a drink, the device made it and poured it, not at all embarrassed by the fact that there were no glasses in it. The support phone turned out to be only Vodafone, which I don't have. After that, he did not approach the device for several days, fearing a new "surprise".
In general, in my opinion, in the absence of glasses, it should not work.
Another time, the machine refused to accept nickels. And often he just doesn't accept the little things. Lately, I prefer to get coffee at the coffee shop near the cash registers, even though it's a little more expensive there.
In general, maybe this coffee shop rolls back to the service master so that the coffee machine is constantly buggy?