Error 400 When Attempting to Open a Module Through a Text Link

Hello Hive-

I am getting a 400 Error message when trying to open a couple of my modules through a text link on our LMS (Sakai for the record). The module opens fine in Rise and also when I open it directly through SCORM Player on Sakai but, when I create a link in the text of my main page, I get the attached 400 Error. My other 3 modules work fine. I have compared the file names and all the components of the ZIP files to the ones that work and they seem I can't see any issues with prohibited characters or spaces. Any ideas?