Database Error : upgrading from 3.8.4 to vb4
 

Hello

I get the following error while trying to upgrade from 3.8.4 to version 4 .


first Erro :

Code:
Database error in vBulletin 3.8.4:

Invalid SQL:
INSERT INTO tagcontent
(tagid* contenttypeid* contentid* userid* dateline)
SELECT tagid* 2* threadid* userid* dateline
FROM tagthread;

MySQL Error : Duplicate entry '2-2-77' for key 1
Error Number : 1062
2nd Error :

Code:
Database error in vBulletin 3.8.4:

Invalid SQL:
INSERT INTO cron
(nextrun* weekday* day* hour* minute* filename* loglevel* varname* volatile* product)
VALUES
(1232082000* -1* -1* 5* 'a:1:{i:0;i:0;}'* './includes/cron/sitemap.php'* 1* 'sitemap'* 1* 'vbulletin');

MySQL Error : Duplicate entry 'sitemap' for key 2
Error Number : 1062
3nd Error :

Code:
Database error in vBulletin 3.8.4:

Invalid SQL:
INSERT INTO attachment
(contenttypeid* contentid* filename* state* reportthreadid* userid* caption* dateline)
VALUES
(8* 1* '1.png'* 'visible'* 0* 1* 'Professional IT'* 1244154590);

MySQL Error : Unknown column 'contenttypeid' in 'field list'
Error Number : 1054
Can anyone fix the problem ?

Thank you.