Bitbucket Cloud documentation can be found at https://support.atlassian.com/bitbucket-cloud/, it is not hosted on GitHub.
I am a bit unsure about what the issue is.
Do you have issues when you are trying to access https://support.atlassian.com/bitbucket-cloud/docs/troubleshoot-problems-in-pipelines ?
Is this page not opening for you? If so, can you attach here a screenshot from your browser that shows what you see when you try to open this page?
Hey Community! We’re willing to wager that quite a few of you not only use Bitbucket, but administer it too. Our team is excited to share that we’ll be releasing improvements throughout this month of...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events