Error message

PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'base.changed' in 'field list': SELECT base.uid AS uid, AS name, base.pass AS pass, base.mail AS mail, base.theme AS theme, base.signature AS signature, base.signature_format AS signature_format, base.created AS created, base.changed AS changed, base.access AS access, base.login AS login, base.status AS status, base.timezone AS timezone, base.language AS language, base.picture AS picture, base.init AS init, AS data FROM {users} base WHERE (base.uid IN (:db_condition_placeholder_0)) ; Array ( [:db_condition_placeholder_0] => 1 ) in DrupalDefaultEntityController->load() (line 198 of /home/
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