You've made serious mistakes and wasted time and money developing something that nobody wanted!
Every year the company will launch a new product or service to grow in the market. Create a project canvas and think like the client using Job To Be Done.
Nowadays, new products must be centered on the customer's perspective, involve the customer in development and allow for customizations requested by the customer.
Create a pitch for your product/service, connecting these 4 aspects: Functional | Operational | Emotional | Social.