SCORM 1.2 Upload Issue into LMS

Hey Sam, thank you for your response and for your willingness to help! The LMS is Kallidus. They are actually telling me now it's because the timestamp is too big. (Kind of confusing though because this exact file has been uploaded before, and all I did is make some small changes and am just trying to swap the file out). Here is what they wrote: 

this is a total of 24 hours, 19 minutes and 20.97 seconds of content in a single lesson. In general, we advise that lessons should be completed in a single sitting, so this looks like it's far too much content to be contained in a single lesson, so although the file is within parameters, the total time is more than our system will accept. 
 
I would recommend breaking up this content into multiple lessons, or if you don't expect this content to take this amount of time to complete, it would be worth speaking to the content author again to see how this has been calculated and if it is correct. 

Do you know how I can change the file? It's definitely not 24 hours of content so I don't know where that number came from. 

EDIT 13/03 AFTERNOON: I was able to resolve my issue! I clicked the 3 dots shown in the screenshot here (this was from a different course) and changed from automatically calculated to custom time, and used a time of 1 hour. That resolved the issue. The automatically calculated time was 186 minutes (still not the 24 hours that Kallidus told me it was) but changing this did the trick!