by Ken Task.
May not be a bug ...
"storedfilecannotreadfile"
cannot read file suggest ownerships permissions on moodledata - recursively. You might have been using a file system repo to upload large SCORM zip files by some other app - like FTP. Since file system repo directory for that is seen by your Moodle, you could insert a SCORM into content.
If you had command line ...
cd /path/to/whereyoucouldseemoodledata
Then chmod ugo+rwx moodledata -R
That makes everything in moodledata user/group/others (ugo) so that they can read/write/execute (+rwx) ... safe to do if moodledata is not in web root.
'SoS', Ken