Continuously rotating, unable to unlock.

There may be no response at any time, such as selecting heroes and shooting.

The button does not appear, indicating that it is sold out?

@Lukash369 said in What task is this i don't understand.:

数量有限。
如果太晚，则必须等待下一个。

Where is the bounty store? how to buy? How to see the remaining quantity? What does it mean to be too late?

What can I get from this daily mission, but it seems I can't get anything.