Why did all my products disappear from my online store?

[SheriWitt]

I spent an entire weekend filling a store with products. They disappeared. Then I spent an entire weekend filling another store with products. They disappeared. Then the original products suddenly appeared a week later. So, I have spent a week getting that store ready to launch. I got a technical error and then it disappeared. The entire store!!! Where is my store?

[Summer]

Hey, @SheriWitt! 

I'd love to help you out with your products. 

There are several possibilities as to why your products would disappear. I'd like to have a better understanding of the issue at hand in order for me to narrow down the possible causes and find a solution for the concern. Could you please share the answers to the questions I've outlined below? It will allow me to assist you effectively. 

• How would you describe the technical error you're experiencing?
  • Does an error message appear? What does the message say?
• Where did the products disappear from? 
  • Did they disappear from the Products page in the admin? 
  • Are they present in the Products page in your admin but disappeared from your website?
• Is your store currently inaccessible?

I'll investigate and assist you further once I have the details I need. Thanks!