CiviCRM Community Forums (archive)

I recently followed the upgrade guide to update CiviCRM (running on wordpress) to version 4.5.5.

Now, whenever I add a new event the following error occurs:

Database Error Code: Unknown column 'is_confirm_enabled' in 'field list', 1054
Additional Details:
Array
(
    [callback] => Array
        (
            [0] => CRM_Core_Error
            [1] => handle
        )

    [code] => -19
    [message] => DB Error: no such field
    [mode] => 16
    [debug_info] => INSERT INTO civicrm_event (title , summary , description , event_type_id , participant_listing_id , is_public , start_date , end_date , max_participants , event_full_text , is_map , is_active , default_role_id , has_waitlist , is_template , created_id , created_date , is_share ) VALUES ('Test event 45' ,  NULL ,  NULL ,  3 ,  NULL ,  0 ,  20150123040400 ,  NULL ,  NULL , 'This event is currently full.' ,  0 ,  1 ,  1 ,  0 ,  0 ,  14126 ,  20150123040516 ,  0 )  [nativecode=1054 ** Unknown column 'is_confirm_enabled' in 'field list']
    [type] => DB_Error
    [user_info] => INSERT INTO civicrm_event (title , summary , description , event_type_id , participant_listing_id , is_public , start_date , end_date , max_participants , event_full_text , is_map , is_active , default_role_id , has_waitlist , is_template , created_id , created_date , is_share ) VALUES ('Test event 45' ,  NULL ,  NULL ,  3 ,  NULL ,  0 ,  20150123040400 ,  NULL ,  NULL , 'This event is currently full.' ,  0 ,  1 ,  1 ,  0 ,  0 ,  14126 ,  20150123040516 ,  0 )  [nativecode=1054 ** Unknown column 'is_confirm_enabled' in 'field list']
    [to_string] => [db_error: message="DB Error: no such field" code=-19 mode=callback callback=CRM_Core_Error::handle prefix="" info="INSERT INTO civicrm_event (title , summary , description , event_type_id , participant_listing_id , is_public , start_date , end_date , max_participants , event_full_text , is_map , is_active , default_role_id , has_waitlist , is_template , created_id , created_date , is_share ) VALUES ('Test event 45' ,  NULL ,  NULL ,  3 ,  NULL ,  0 ,  20150123040400 ,  NULL ,  NULL , 'This event is currently full.' ,  0 ,  1 ,  1 ,  0 ,  0 ,  14126 ,  20150123040516 ,  0 )  [nativecode=1054 ** Unknown column 'is_confirm_enabled' in 'field list']"]
)

However, I can see clearly in the civicrm_event table that the column is_confirm_enabled exists??
When I update an existing Event, it works fine.. its only when creating a new one.

Can anyone shed light on what is happening here? I have tried everything to fix it!!