Check that you have proper access to the repository
error: failed to push some refs to '<GIT_REPO_URL>'
```
Have you checked the value of `LFS_HTTP_AUTH_EXPIRY` in your `app.ini` file? By default your LFS token will expire after 20 minutes. If you have a slow connection or a large file (or both) it may not finish uploading within the time limit.
You may want to set this value to `60m` or `120m`.