Is it normal to go days without sales?

Recently sent off a product (found on AliExpress, not private) with a great sales rank to Amazon France. They took their time to distribute the product to different fulfilment centres but it is possible to buy them. Until last night, I didn’t have the buy box, but after lowering my price to beat the nearest competitors, I do now have the buy box.

I’ve now had the buy box for 24 hours and still not even one sale.

What do I do?