I went into a place known for smoothies/slushes a few months ago. They were out of the frozen yogurt they use in something like half of them. And then tried to sub with almond milk or something.
Some places just can't manage stocking properly, I guess.
There was a sub sandwich place near the University I went to. Went in one day and was told they were out of bread. I figured that meant they were really in trouble, probably fell behind on paying for supplies.
If almost no one ever comes to your restaurant, I imagine it’s pretty hard to hire/pay to hire a good manager who would prevent something like that from happening.