No one buys stuff from me

I'm on level 26 and on level 25 i started noticing that my goods take longer to sell. I used to be able to empty my 6 slot market in that 5 minutes (or how many) when it is advertised. Now i have one buyer who usually buys 1 or 2 product in the first 1 minute and then silence afterward. Why is it guys? This is gonna be my farmer life now that i reached level 25? I need money 🤌