Error on upgrade from 3.08 to 3.5 RC1

[rinkrat]

After getting it upgrade I am getting this error:

Warning: Invalid argument supplied for foreach() in /includes/class_core.php on line 2489


Unable to add cookies, header already sent.
File: $filename
Line: $linenum

[Marco van Herwaarden]

Please keep support to upgrading vB to vb.com, unless it is hack related.