Suddenly sales copies are not working

[UKcart]

As I work on many projects at a time. So, I don't have much time spending in each of them.

I got a sales copy last month for a brand new product. It was getting pretty good click throughs and even sales. But since this month started it began to fall. I am new to the sales section. I mostly do the technical things.

So, is there anything I should do?