How can i end a sprint

Question

I can not find the backlogs and active sprint link today, i can use this yestoday
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there are six links on this bar yestoday. but i can not find them today. Why????

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Mahesh S_y9hwt0 · Answer

Please expand the slider >> and see whether boards dropdown is available under the project.

辛帅锋 · Answer

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Boards in this project is blank. but i am sure there is a board in this project
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辛帅锋 · Answer

We don't do anything for the JIRA configure. Why i can find it yestoday but not today. And i can visit the Backlogs page directly but can't find the link. i think isn't a permission problem