[13-May-2026 03:08:30 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
[13-May-2026 03:10:48 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
[13-May-2026 03:10:48 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
[13-May-2026 03:10:50 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
[13-May-2026 03:10:51 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
[13-May-2026 03:10:51 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
[13-May-2026 03:10:51 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
[13-May-2026 03:10:53 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
[14-May-2026 01:42:09 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
[14-May-2026 01:42:13 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
[14-May-2026 01:43:33 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
[14-May-2026 01:43:35 UTC] PHP Fatal error:  Uncaught TypeError: Staff_db::validateGrade(): Argument #2 ($grade) must be of type ?int, string given, called in /home/larschoo/api.larschool.ir/students/search/index.php on line 69 and defined in /home/larschoo/api.larschool.ir/db/staff_db.php:203
Stack trace:
#0 /home/larschoo/api.larschool.ir/students/search/index.php(69): Staff_db->validateGrade()
#1 /home/larschoo/api.larschool.ir/students/search/index.php(193): getStudents()
#2 {main}
  thrown in /home/larschoo/api.larschool.ir/db/staff_db.php on line 203
