Error??

This is an error I get when I try and install Milad's port for 3.5.4 I do everything fine until I have to import the product. I get the following error:

PHP Code:

Database error in vBulletin 3.5.4:

Invalid SQL:
alter table user add vbchat_pref_font varchar(255) not null default '',add vbchat_pref_font_color varchar(255) not null default '',add vbchat_pref_user_ignore text not null default '';;

MySQL Error  : Duplicate column name 'vbchat_pref_font_color'
Error Number : 1060 


There is some error somewhere but when I checked in the XML i did not see any repeating 'vbchat_pref_font_color.' Unfortunately I do not whats wrong and if anyone helped, the help would be greatly appreciated.