Farmers Stop Working

My farmers had Been working fine before, until I noticed a big drop in food. I checked the fields, and all of my crops were rotten. I replanted the crops, and now the farmers are refusing to harvest it and things are starting to rot again.
https://steamuserimages-a.akamaihd.net/ugc/910156736626179526/233DAA904CAA9C2369C7CE61BA150CFA98F91249/
These are the farmers refusing to work
https://steamuserimages-a.akamaihd.net/ugc/910156736626179261/9684CB28F7F67C33DE39B758BCA06EE3FA1CBD9F/
these are the fields. The turnips are ripe and starting to rot, and some of my wheat is ripe but a lot of it is rotten

This is probably due to there being too many tasks for your pc to keep up. Lowering the game speed to 1x, or “disposing” of some people and lowering the limit for max villagers may resolve this.

Thanks for the advice