Cannot access to a forked repository from SourceTree

[uiweo]

I am trying BitBucket. I created a repo for testing, and then I am able to pull and push it successfully.

Then I made a fork and trying to push but SourceTree does not allow me to access the fork.

First, I'm logging in into BitBucket via Google account. Therefore I have no password for BitBucket.

OAuth is setting up.

It has two app passwords. I gave full permission for them.

I am able to pull and push the code. Then I created a fork on BitBucket, and added remote in the local repo to the fork.

Now I'm going to push it to the fork.

Then it asks me a password. I'm confusing because I have logged in to BitBucket via Google account, and it has no option to login from Google Account.

I used the app password, then I get this error.

I also tried "Forgot your password", but I don't receive any emails.

The fork is not set to 'private'.

How to access the forked repository?

[uiweo]

Now I learn that repositories cannot share LFS files.

https://confluence.atlassian.com/bitbucket/current-limitations-for-git-lfs-with-bitbucket-828781638.html

And it turns out that I have confused about the limitation of LFS with SSH configuration issue. SSH has been correct before I know it.

[uiweo]

I cannot pull LFS file. I think all of my problems share the same cause: broken login info.

(I'm taking screen shots because it does not allow me to use a clipboard)

Now I'm trying to start over.

Created ppk file with PuTTY.

Added the key to BitBucket.

Added the key to Pageant (2nd line).

In SourceTree, I deleted all accounts once, and then re-created an account. It enables SSH.

Despite all of my effort, the error is still exists.

[uiweo]

Update. I am able to push it from git command prompt. 

It asked the password twice. I set the app password and it worked. Therefore the problem is likely coupling with SoruceTree.