When I upload my files, it says my material has been created, but also states this warning:

warning: Invalid argument supplied for foreach() in /www/creativechalk.com/site/sites/all/modules/cck/content.module on line 1016.

So, when people look at what has been recently uploaded, they can find my lessons, and the thumbnails are visible in regular searches. However, if they click on the thumbnail to go to that file's page, the thumbnail on the file's actual page is not visible and you can't download it either.

I'm using Microsoft Office Word 2004 on a MacBook (uploading only .doc files at this point), and while I have Japanese written within the file itself, I haven't uploaded any files with Japanese written in the filename so far.

One more thing, after noticing my files weren't being uploaded correctly, I tried deleting them and that didn't work, either...

Any suggestions?