Cosas de Administradores

Estoy intentando integrar Dimdim en moodle. Creo haberlo hecho bien pero cuando hago clic en notificaciones para crear la base de datos me da un error:

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dimdim

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(mysql): CREATE TABLE mdl_dimdim ( id BIGINT(10) unsigned NOT NULL auto_increment, course BIGINT(10) unsigned NOT NULL DEFAULT 0, name VARCHAR(255) NOT NULL DEFAULT '', intro TEXT NOT NULL, keepdays BIGINT(11) NOT NULL DEFAULT 0, studentlogs SMALLINT(4) NOT NULL DEFAULT 0, dimdimtime BIGINT(10) unsigned NOT NULL DEFAULT 0, schedule SMALLINT(4) NOT NULL DEFAULT 0, confkey VARCHAR(255) NOT NULL DEFAULT '', emailuser VARCHAR(255) NOT NULL DEFAULT '', displayname VARCHAR(255) NOT NULL DEFAULT '', startnow VARCHAR(255) NOT NULL DEFAULT '', attendees VARCHAR(255) NOT NULL DEFAULT '', timezone VARCHAR(255) NOT NULL DEFAULT '', timestr VARCHAR(255) NOT NULL DEFAULT '', lobby VARCHAR(255) NOT NULL DEFAULT '', networkprofile SMALLINT(4) NOT NULL DEFAULT 0, meetinghours SMALLINT(4) NOT NULL DEFAULT 0, meetingminutes SMALLINT(4) NOT NULL DEFAULT 0, maxparticipants SMALLINT(4) NOT NULL DEFAULT 0, timemodified BIGINT(10) unsigned NOT NULL DEFAULT 0, audiovideosettings SMALLINT(4) NOT NULL DEFAULT 0, privatechat VARCHAR(255) NOT NULL DEFAULT '', publicchat VARCHAR(255) NOT NULL DEFAULT '', screencast VARCHAR(255) NOT NULL DEFAULT '', whiteboard VARCHAR(255) NOT NULL DEFAULT '', participantlist VARCHAR(255) NOT NULL DEFAULT '', displaydialinfo VARCHAR(255) NOT NULL DEFAULT '', interntoll TEXT NOT NULL, moderatorpasscode TEXT NOT NULL, attendeepasscode TEXT NOT NULL, meetingkey TEXT NOT NULL, hostkey TEXT NOT NULL, assistantenabled VARCHAR(255) NOT NULL DEFAULT '', handsfreeonload VARCHAR(255) NOT NULL DEFAULT '', assignmikeonjoin VARCHAR(255) NOT NULL DEFAULT '', allowattendeeinvite VARCHAR(255) NOT NULL DEFAULT '', featuredocshare VARCHAR(255) NOT NULL DEFAULT '', featurecobshare VARCHAR(255) NOT NULL DEFAULT '', featurerecording VARCHAR(255) NOT NULL DEFAULT '', maxmikes SMALLINT(4) NOT NULL DEFAULT 0, CONSTRAINT PRIMARY KEY (id) )

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1050: Table 'mdl_dimdim' already exists

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(mysql): ALTER TABLE mdl_dimdim COMMENT='Each of these is a dimdim room'

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Alguien podría decirme que hago mal?