PDOException: SQLSTATE[42S22] with memcache [#1659674]

We just disabled Caption because of this error:

WD php: PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'captcha_type' in 'field list': SELECT module, captcha_type FROM {captcha_points} WHERE form_id = :form_id; Array               [error]
(
    [:form_id] => system_modules
)
 in captcha_get_form_id_setting() (line 73 of /DRUPAL7/sites/all/modules/contrib/captcha/captcha.inc).
WD php: Warning: Cannot modify header information - headers already sent by (output started at /usr/local/share/drush/includes/drush.inc:820) in drupal_send_headers() (line 1239 of                         [warning]
/DRUPAL7/includes/bootstrap.inc).
PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column &#039;captcha_type&#039; in &#039;field list&#039;: SELECT module, captcha_type FROM {captcha_points} WHERE form_id = :form_id; Array
(
    [:form_id] => system_modules
)
 in captcha_get_form_id_setting() (line 73 of /DRUPAL7/sites/all/modules/contrib/captcha/captcha.inc).
Drush command could not be completed.

It may or may not be related to memcache.