Stuck on 'Taking Sick Day'

Hello.
Try having your sim travel to another lot and back , then see if that helps.

Try moving your mods folder to the desktop.Then start the game and test to see if that helps the issues. If it does help, then put your mods/CC back into the newly generated mods folder in the sims 4 folder one by one or in batches and testing the game after each one to see which is the cause of the problem.
By doing that, you will be able to see if the cause of the issue is your mods/cc.

If the issues remain, try resetting your sims 4 folder and see if that helps. To do that, move your sims 4 folder ( that is in Documents -Electronic Arts - then the sims 4 folder is there ) to the desktop. Then start the game, and a new sims 4 folder will be generated. Exit the game and then copy back the "options.ini" or " options " file and the "saves" , "screenshots" "tray" "custom music " and "mods" folders from the desktop sims 4 folder to the new sims 4 folder, replacing the new generated file/ folders with the old file/folders from the desktop sims 4 folder

Thanks rosemow! I'll have a go at that. :)

Youte welcome :) I hope that it helps to fix your issues.

You didn't say this would restart the game:( rip

Same thing is happening to me with one of my two teen sims. He stayed him legitimately sick one day when a child, aged up the next, and now won't go to school or scouts. Three days later he's still 'taking a sick day.' Tried restarting the game. Haven't yet tried moving the ini file but will do that next. In the meantime, I send him to volunteer during the scout meeting, cheated him to an 'A' student and declared him 'home schooled'.

My two teens were not going to normal day school, but they did have school on Saturdays. sometimes they would go at night and get back at like 3 am. I guess they got kicked out of day school. So I did nothing and soon they let them back in day school and all is ok again.
sometimes when I get a bug I try to see if it will fix itself. sometimes it does sometimes not.