You are not in this league. (Error #150)
Please make sure you are logged into the correct account. You may also need to clear your login cookies and start with a fresh login to be recognized.
If you continue to have trouble, please let us know real time on Twitter @YahooFantasyCC so we can work with you to resolve the issue.
Thanks for reaching out to us!
I am getting this also and cannot load my pre-draft stuff.... Is there anything that fixes this? Thanks for the help
I have signed in to my league (I only have 1 ID) and get the same error message when I try to load my pre-draft rankings into a mock draft. Driving me crazy.
There is no fix. You must be using the wrong ID to access this league.