I finally figured it out with help from this post: https://moodle.org/mod/forum/discuss.php?d=416647
I had to Enable Direct AICC URL and Enable External AICC HACP in the SCORM plugin settings. Then on course's SCORM activity settings, I changed the package to be type of "External AICC URL", then used the URL that was in course.au file in the URL field. There is no need to upload the package that just has the 4 files.
I had to Enable Direct AICC URL and Enable External AICC HACP in the SCORM plugin settings. Then on course's SCORM activity settings, I changed the package to be type of "External AICC URL", then used the URL that was in course.au file in the URL field. There is no need to upload the package that just has the 4 files.