Install error Module Sites

Installation of: Sites Failed

INSERT INTO `sys_menu_top`(`Parent`, `Name`, `Caption`, `Link`, `Order`, `Visible`, `Target`, `Onclick`, `Check`, `Editable`, `Deletable`, `Active`, `Type`, `Picture`, `Icon`, `BQuickLink`, `Statistics`) VALUES(4, 'Sites', '_bx_sites_menu_my_sites_profile', 'modules/?r=sites/browse/my', @iCatProfileOrder, 'memb

Have you previously installed this module? If so, make sure there isn't an entry in the sys_menu_top table for it.

When i look in the tabel i see 3 record with name Sites , delete all 3 ?

The default entries from the Sites module have a Caption that starts with "_bx_sites". So if you see those, delete them and clear Dolphin's cache. But make a backup of the database before making any changes.