If you checked and you don't have any sales pending, it's likely related to certain domain extensions.
I've experienced this with .ninja, .tv, and .com.co extensions.
Yeah, it's a glitch, there are no ''pending sales'', sorry to disappoint you It happens to me a lot. If you write them they actually will fix it for you, but it's just some system failure from their end... And true, it easily could be due to extention, I had this problem several times with .xyz...