Suite new database error
 

while upgrading from 3.8 to 4.01
please help

Code:
vBulletin 4.0 Upgrade System
Step 9) Albums System Alterations #all { margin: 10px; } #all p, #all td, #all li, #all div { font-size: 11px; font-family: verdana, arial, helvetica, sans-serif; }

Step 9) Albums System Alterations
Moving picture 1 into the Attachment System

Fatal error: Class 'vB_DataManager_attachmentfiledata' not found in /home/samii/public_html/testsuite/includes/functions.php on line 135