Configuring the Q&A CAPTCHA within the ACP fails with an SQL error when clicking the "configure" button:

General Error
SQL ERROR [ postgres ]

ERROR: argument of WHERE must be type boolean, not type integer LINE 1: SELECT * FROM phpbb_captcha_questions WHERE 1 ^ []

SQL

SELECT * FROM phpbb_captcha_questions WHERE 1

BACKTRACE

FILE: includes/db/postgres.php
LINE: 177
CALL: dbal->sql_error()

FILE: includes/captcha/plugins/phpbb_captcha_qa_plugin.php
LINE: 680
CALL: dbal_postgres->sql_query()

FILE: includes/captcha/plugins/phpbb_captcha_qa_plugin.php
LINE: 573
CALL: phpbb_captcha_qa->acp_question_list()

FILE: includes/acp/acp_captcha.php
LINE: 47
CALL: phpbb_captcha_qa->acp_page()

FILE: includes/functions_module.php
LINE: 507
CALL: acp_captcha->main()

FILE: adm/index.php
LINE: 74
CALL: p_master->load_active()