[BH] Start class not working

Hey.

So I have that one Sim who started small business which is Gibbi Yoga. Start WELLNESS class worked pretty well, but sudenly it stopped, now I can't hold any paid lecture, it says that my Sim canceled the hobby classes, because no one came. And it ends with failure everytime I try. I play with no mods and on PC.

Interesting thing is that when FAILURE shows up, my Sim keep holding lecture (it's not paid one anymore) then customers starting listen to her. I also tried on new save file with another Sim and it's the same.

The house is in my gallery, ID: gosqueen, and the house is called Gibbi Yoga Small Business.