probably because of lack of currency for imports

That makes sense. Russia is saving its money to pay smugglers to smuggle in weapons components.

Not mentioned in the article, but mentioned elsewhere - trains. Russia relies heavily on trains to move things. One part of train maintenance is the replacement of bearings. Russia can’t manufacture bearings for its trains and it can’t import them either because of sanctions. Russia has fewer and fewer operational trains and train cars. One very important thing that the trains haul is grain. There are reports that Russia could face starvation by the end of the year if it doesn’t get its trains repaired because they will be unable to haul food to the cities. Russia doesn’t have enough trucks and roads to replace the trains.

Eh, banks give out loans for people to start restaurants all the time

** Citation needed.