Uuntill recently it was working fine but since last week it's giving me the error as listed below, when i try to access the projects submitted by the students who are enrolled in. when i click on "view submitted assignments" it gives me an error message which is mentioned below. What does it mean? How to resolve it...
The error message is:
Warning: mysqli::query() [mysqli.query]: (22003/1690): BIGINT UNSIGNED value is out of range in '(`lqskh9c7`.`s`.`timemarked` - `lqskh9c7`.`s`.`timemodified`)' in /var/www/ktm/moodle/lib/dml/mysqli_native_moodle_database.php on line 789
Error reading from database
Debug info: BIGINT UNSIGNED value is out of range in '(`lqskh9c7`.`s`.`timemarked` - `lqskh9c7`.`s`.`timemodified`)'
SELECT u.id,u.picture,u.firstname,u.lastname,u.imagealt,u.email,
s.id AS submissionid, s.grade, s.submissioncomment,
s.timemodified, s.timemarked,
COALESCE(SIGN(SIGN(s.timemarked) + SIGN(s.timemarked - s.timemodified)), 0) AS status FROM mdl_user u LEFT JOIN mdl_assignment_submissions s ON u.id = s.userid
AND s.assignment = 6 WHERE s.timemarked < s.timemodified AND u.id IN (98,172) ORDER BY lastname ASC
[array (
)]
SELECT u.id,u.picture,u.firstname,u.lastname,u.imagealt,u.email,
s.id AS submissionid, s.grade, s.submissioncomment,
s.timemodified, s.timemarked,
COALESCE(SIGN(SIGN(s.timemarked) + SIGN(s.timemarked - s.timemodified)), 0) AS status FROM mdl_user u LEFT JOIN mdl_assignment_submissions s ON u.id = s.userid
AND s.assignment = 6 WHERE s.timemarked < s.timemodified AND u.id IN (98,172) ORDER BY lastname ASC
[array (
)]
Stack trace:
- line 391 of /lib/dml/moodle_database.php: dml_read_exception thrown
- line 790 of /lib/dml/mysqli_native_moodle_database.php: call to moodle_database->query_end()
- line 1303 of /mod/assignment/lib.php: call to mysqli_native_moodle_database->get_records_sql()
- line 642 of /mod/assignment/lib.php: call to assignment_base->display_submissions()
- line 369 of /mod/assignment/type/upload/assignment.class.php: call to assignment_base->submissions()
- line 57 of /mod/assignment/submissions.php: call to assignment_upload->submissions()