Your only order was delivered successfully 29 days ago, and you earned a positive review. If you cancelled an order since then, then you probably have a 50% order cancellation rate – which is very bad. Fiverr requires that you maintain a cancellation above 90% over the course of 60 days. Your gig will likely see very low visibility on Fiverr until those 60 days pass, and your cancellation is no longer affecting your success. Until that happens, of you want to earn more orders, you are going to have to find them by marketing and promoting your gig wherever your target customers are located. You’re going to have to go find your own customers and bring them to your gig.
The more orders you complete (and do no cancel), the faster you may be able to raise your order completion rate.