Nuevos Módulos, Apariencia y Personalización

Hola amigos: Necesito ayuda. He instalado la versión 1.9.11 y desde entonces no me funciona el módulo quickmail. Lo he borrado del directorio blocks y lo he vuelto a poner pero cuando lo voy a instalar me sale esto: quickmail -------------------------------------------------------------------------------- (mysql): CREATE TABLE mdl_block_quickmail_log ( id BIGINT(10) unsigned NOT NULL auto_increment, courseid BIGINT(10) unsigned NOT NULL DEFAULT 0, userid BIGINT(10) unsigned NOT NULL DEFAULT 0, mailto TEXT NOT NULL, subject VARCHAR(255) NOT NULL DEFAULT '', message TEXT NOT NULL, attachment VARCHAR(255) NOT NULL DEFAULT '', format SMALLINT(3) unsigned NOT NULL DEFAULT 1, timesent BIGINT(10) unsigned NOT NULL DEFAULT 0, CONSTRAINT PRIMARY KEY (id) ) -------------------------------------------------------------------------------- 1050: Table 'mdl_block_quickmail_log' already exists ADOConnection._Execute(CREATE TABLE mdl_block_quickmail_log ( id BIGINT(10) unsigned NOT NULL auto_increment, courseid BIGINT(10) unsigned NOT ..., false) % line 891, file: adodb.inc.php ADOConnection.Execute(CREATE TABLE mdl_block_quickmail_log ( id BIGINT(10) unsigned NOT NULL auto_increment, courseid BIGINT(10) unsigned NOT ...) % line 89, file: dmllib.php execute_sql(CREATE TABLE mdl_block_quickmail_log ( id BIGINT(10) unsigned NOT NULL auto_increment, courseid BIGINT(10) unsigned NOT ..., true) % line 2302, file: dmllib.php execute_sql_arr(Array[2]) % line 635, file: ddllib.php install_from_xmldb_file(/mnt/sdc1/centros.lasalle.es/html/evaesc/blocks/quickmail/db/install.xml) % line 1399, file: blocklib.php ErrorScroll to continue button -------------------------------------------------------------------------------- (mysql): ALTER TABLE mdl_block_quickmail_log COMMENT='Stores the email history for the quickmail block' -------------------------------------------------------------------------------- ¿Alguién sabe que pasa? Muchas gracias por vuestra ayuda.