I have posted the 2019 team logo file and 2019 team stadium/fields files in the "Misc. Files" link on the home page. You can find the link in the upper left hand corner of the home page and/or http://www.aaroncraneinstitute.com/football/miscfiles/
Download each file your computer (be aware the stadium file is quite large and downloading will take a minute or two). Then do the following: Team Logos File - Extract the contents of the file, just as you would the weekly league file, to your dksports-data\football\TeamLogos folder
Team Fields File - Extract the contents of the file, just as you would the weekly league file, to your dksports-data\football\Stadiums folder