I have the next goal marked as a 15 Day Goal starting Thursday May 02.
I've stopped by your bakery to have a look and can see your food is fine, and your layout is fine for the most part. Your problem is the customers are not able to reach your cash register - it's blocked entirely by decos and pretty far into your layout.
The first thing a customer does when they walk into a bakery/restaurant in s8 games is to head straight for the register/host stand before heading for a seat and then eating. For future reference, a good rule of thumb to finding why customers is unhappy is where in this bot process the blue broken heart shows up. Standing by door broken heart = register placement issue, standing further in bakery broken heart = layout issue, sitting at table broken heart = food issue.
For optimal customer flow, you want to have a register relatively close to each door that your customers can get to quickly and directly. Looking at your layout, you can easily solve the issue by moving the Hipster Dude and the Camper you have in front of the register so actual game bots can reach it. Alternately, I see that each door has an empty square directly next to it that could hold registers.
If you placed them by the doors, you can leave the register in the middle as is for deco purposes but the bot customers can just stop at the door registers when they take that first step into your place. Either solution should work, it's just a matter of choice as to which you find the most visually appealing.
If I've not explained this well, let me know and I can include a pic pointing out where the registers should go to get you back up and running. Good luck, I hope this helps you get your food moving again.