Debug info: ORA-00923: FROM keyword not found where expected

SELECT a.id AS assignment, a.nosubmissions AS offline, g.timemodified AS timemarked, g.grader AS grader, g.grade AS grade, s.status AS status

FROM m_assign a LEFT JOIN m_assign_grades g ON g.assignment = a.id AND g.userid = :o_param1 LEFT JOIN m_assign_submission s ON s.assignment = a.id AND s.userid = :o_param2

AND a.id = :o_param3

[array (

'o_param1' => '21',

'o_param2' => '21',

'o_param3' => '23',

)]

Error code: dmlreadexception

Stack trace:

    line 407 of /lib/dml/moodle_database.php: dml_read_exception thrown

    line 274 of /lib/dml/oci_native_moodle_database.php: call to moodle_database->query_end()

    line 1101 of /lib/dml/oci_native_moodle_database.php: call to oci_native_moodle_database->query_end()

    line 263 of /mod/assign/lib.php: call to oci_native_moodle_database->get_records_sql()

    line 847 of /course/lib.php: call to assign_print_overview()

    line 107 of /blocks/course_overview/block_course_overview.php: call to print_overview()

    line 281 of /blocks/moodleblock.class.php: call to block_course_overview->get_content()

    line 232 of /blocks/moodleblock.class.php: call to block_base->formatted_contents()

    line 935 of /lib/blocklib.php: call to block_base->get_content_for_output()

    line 987 of /lib/blocklib.php: call to block_manager->create_block_contents()

    line 314 of /lib/blocklib.php: call to block_manager->ensure_content_created()

    line 1043 of /lib/outputrenderers.php: call to block_manager->get_content_for_region()

    line 148 of /my/index.php: call to core_renderer->blocks_for_region()