Gaki no Tsukai Dont Laugh Series problems with subtitles

Hey i am new on this things
and i dont know how to watch the Do not laugh series with subtitles,.
Could anyone explain me how this whole concept is working?
I would be very thankful, thanks !

there’s a whole section called troubleshooting and help, in it there is this thread:
[url=http://www.gaki-no-tsukai.com/thread.php?threadid=354:1xso5mgf]Loading Subtitle Files[/url:1xso5mgf]