The resume will work, if you pause the game. Exit will not work as the browser does not allow the tab to be closed forcefully. On the APK and Preview versions, the Exit works. The resume button will not work at the beginning of the game as this game has not started yet. In the jail scene, you have to click on the "go to intro" then you will go to the intro page, from there you can start a game. The load button will work if you click on the save button, on clicking the load button, the game will start from the same day. The one customer who does not go, it is not a bug, she/he is a regular customer. If you sell a product to each customer, you will notice the differences. When you are unable to pay the loan, you will end up in jail. When money is less, the customer goes as the customers do not find the products as expected. And sometimes, they prefer newly produced products. When you produce a product, you invest money. When you sell products, you earn a profit. The customer will not like every product, it is the most common natural aspect of our life which is why we see many companies with the same category products. You do not miss the whole day, you can produce a product if you have money. At the end of the day, the wife/father pops up. On a rainy day, the customers will not come, so you can skip the whole day by going to sleep. You have to try to sell each product to each customer or somewhere else to find out the differences.
Thanks for your valuable time and comment.