Debug info: ERROR: syntax error at or near "dtstart"

LINE 1: SELECT min(dtstart) dtstart FROM mdl_turnitintool_parts WHER...

^

SELECT min(dtstart) dtstart FROM mdl_turnitintool_parts WHERE turnitintoolid=15

[array (

)]

Stack trace:

line 394 of /lib/dml/moodle_database.php: dml_read_exception thrown

line 232 of /lib/dml/pgsql_native_moodle_database.php: call to moodle_database->query_end()

line 678 of /lib/dml/pgsql_native_moodle_database.php: call to pgsql_native_moodle_database->query_end()

line 1290 of /lib/dml/moodle_database.php: call to pgsql_native_moodle_database->get_records_sql()

line 1262 of /lib/dml/moodle_database.php: call to moodle_database->get_record_sql()

line 6363 of /mod/turnitintool/lib.php: call to moodle_database->get_record_select()

line 1476 of /mod/turnitintool/lib.php: call to turnitintool_get_record_select()

line 319 of /mod/turnitintool/view.php: call to turnitintool_introduction()