sronald_76,
I checked my installation of allvideos. Here is the path to the folder with the file on my server. Which is slightly different than the one reported. Different versions may have it in different locations, so double check your directories for it.
/public_html/plugins/content/jw_allvideos/jw_allvideos/includes/sources.php
I checked it and made a screenshot of the contents and highlighted the lines that need to be changed.
If you're file does not have these lines, try reinstalling allvideos. Try getting Free Script editor, which is what I used to make the screen shot.
www.freescripteditor.org/download.php If you have the correct file, the line numbers should match the screen shot, and the lines you need to change will be there.
Ed