You are missing a CoDec used by the files. Reinstall Quicktime and if necessary whatever third-party CoDec.
Hey Mylenium, I reinstalled Quicktime and the problem still seems to be there. I'm not really certain what other Third-Party CoDec I should install/reinstall. It doesn't seem to retrieve some JPEG and PSD files, which I have Photoshop installed as well, so I don't exactly know what I should do.
I'm kind of new with the Creative Cloud, so apologies in advance, haha.
Example of the file not working.
AE apparently can't find some of the file. Double-click on a missing file. Navigate to this file's location. Double-click again, this time on the located file. AE will relink to any other missing files in that folder. Save the project.
If the problem persists, write back.
UPDATE: I recently discovered that it was of my own stupidity, and after downloading the Template, I didn't even extract the files. Haha, oops. Thank you for the assistance, even though it was completely my own error.