[SAT2M]

Hello
I want to remove this hack but I cant & shown this database error why?

.................
Database error in vBulletin 3.7.2:

Invalid SQL:
DROP table linkback;

MySQL Error : Unknown table 'linkback'
Error Number : 1051
Request Date : Wednesday, August 20th 2008 @ 04:36:10 PM
Error Date : Wednesday, August 20th 2008 @ 04:36:10 PM
Script : http://www.***.com/admincp/plugin.php?do=productkill
Referrer : http://www.***.com/admincp/plugin.ph...eolinkbacks&s=
IP Address : 206.222.**.**
Username : MEHDI
Classname : vB_Database
MySQL Version : 5.0.51a-community
.................................