Classic Website Editor:
Go to the Website tab and click Manage.
Click the Settings button in the upper right.
Make sure Public Rosters is checked ON in the Site Information section
Don't forget to Save
Go to the Website tab and click Builder
Click Site Settings at the top and go to the Site Info tab
Check Public Rosters on and click Save All
Once you've ensured public rosters are on:
Click your Season tab at the top and go to Schedule & Scores and select Statistics
Click Settings in the upper right
Make sure the first two check boxes are CHECKED
Stats that you are tracking and that are public will appear on your League Website or the statistics widget.