Fatal error: Call to undefined function _system_rebuild_theme_data() in /home/words/public_html/drupal7/includes/theme.inc on line 798

Uncaught exception thrown in shutdown function.

PDOException: SQLSTATE[42000]: Syntax error or access violation: 1286 Unknown table engine 'InnoDB': DELETE FROM {semaphore} WHERE (value = :db_condition_placeholder_0) ; Array ( [:db_condition_placeholder_0] => 150632152051c2af82004339.66620459 ) in lock_release_all() (line 269 of /home/words/public_html/drupal7/includes/lock.inc).