Forum Problem with Upgrading to 4.0.4
 

I am running into an error message while trying to upgrade my vBulletin from 3.8.4 to the latest stable release of 4.0.4.

It is appearing on Step 9 - Albums System Alterations:
/forums/install/upgrade_400a1.php?step=9

It states:

Quote:
Could not create file system directory to hold your attachment.

...and keeps telling me to go back.

What does this mean and how can I fix this??