Error Code in Admin Folder Log

Wonder if I could get an opinion on this, I getting this error code:

[06-Aug-2013 00:21:09 UTC] WordPress database error Table ‘stf1_users’ already exists for query CREATE TABLE stf1_users (

ID bigint(20) unsigned NOT NULL auto_increment,

user_login varchar(60) NOT NULL default ”,

user_pass varchar(64) NOT NULL default ”,

user_nicename varchar(50) NOT NULL default ”,

user_email varchar(100) NOT NULL default ”,

user_url varchar(100) NOT NULL default ”,

user_registered datetime NOT NULL default ‘0000-00-00 00:00:00’,

user_activation_key varchar(60) NOT NULL default ”,

user_status int(11) NOT NULL default ‘0’,

display_name varchar(250) NOT NULL default ”,

spam tinyint(2) NOT NULL default ‘0’,

deleted tinyint(2) NOT NULL default ‘0’,

PRIMARY KEY (ID),

KEY user_login_key (user_login),

KEY user_nicename (user_nicename)

The error part of this repeats over and over I am a little lost on what could be causing it.

Thanks.