Minecraft villager trade nothing more?

I have the problem in my minecraft world that wwnn I trade with a farmer he hasn't run out of the traded item and you have to wait until he refills it but I've already waited several minecraft tace and the red cross is still there. I know that there's such a thing as work days but don't know how to take care of them, someone can tell me

Seems to be a farmer, maybe you dismantled your composter and it was taken over by someone else. Just place a couple of composters again, maybe it'll work

Maybe you have to trade something else in order for the villager to reset the stats.
So you could at least cancel blocked trades in the 1.8.9, whether that is still possible in the 1.14 or higher, I don't know exactly.

Nope, changed to 1.14. Now you can do each trade a couple of times and then have to wait until it resets. What I think he does 2 times a day.

A villager must use his work block to reset the trades.

That means next to your villager there has to be a composter that he can use.