DB Upgrede ERROR.

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c:\bin\NetXMS\bin>nxdbmgr upgrade
NetXMS Database Manager Version 1.1.5

Upgrading database...
Upgrading from version 105 to 217
Upgrading from version 217 to 218
Upgrading from version 218 to 219
SQL query failed ([Microsoft][SQL Server Native Client 10.0][SQL Server]There is
 already an object named 'images' in the database.):
CREATE TABLE images (  guid varchar(36) not null,  mimetype varchar(64) not nu
ll,  name varchar(255) not null,  category varchar(255) not null,  protected
integer default 0,      PRIMARY KEY(guid),  UNIQUE(name, category))
Rolling back last stage due to upgrade errors...
Database upgrade failed
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Manager Server:
Windows 2008
SQL Server 2008

Please help it.