[15-May-2026 14:31:34 UTC] PHP Fatal error:  Uncaught TypeError: hash_equals(): Argument #1 ($known_string) must be of type string, null given in /home/larschoo/api.larschool.ir/db/student_db.php:50
Stack trace:
#0 /home/larschoo/api.larschool.ir/db/student_db.php(50): hash_equals()
#1 /home/larschoo/api.larschool.ir/notifications/index.php(71): Student_db->verify()
#2 /home/larschoo/api.larschool.ir/notifications/index.php(171): checkGroups()
#3 /home/larschoo/api.larschool.ir/notifications/index.php(216): getNotifications()
#4 {main}
  thrown in /home/larschoo/api.larschool.ir/db/student_db.php on line 50
[15-May-2026 14:31:34 UTC] PHP Fatal error:  Uncaught TypeError: hash_equals(): Argument #1 ($known_string) must be of type string, null given in /home/larschoo/api.larschool.ir/db/student_db.php:50
Stack trace:
#0 /home/larschoo/api.larschool.ir/db/student_db.php(50): hash_equals()
#1 /home/larschoo/api.larschool.ir/notifications/index.php(71): Student_db->verify()
#2 /home/larschoo/api.larschool.ir/notifications/index.php(171): checkGroups()
#3 /home/larschoo/api.larschool.ir/notifications/index.php(216): getNotifications()
#4 {main}
  thrown in /home/larschoo/api.larschool.ir/db/student_db.php on line 50
[15-May-2026 22:28:01 UTC] PHP Fatal error:  Uncaught TypeError: hash_equals(): Argument #1 ($known_string) must be of type string, null given in /home/larschoo/api.larschool.ir/db/student_db.php:50
Stack trace:
#0 /home/larschoo/api.larschool.ir/db/student_db.php(50): hash_equals()
#1 /home/larschoo/api.larschool.ir/notifications/index.php(71): Student_db->verify()
#2 /home/larschoo/api.larschool.ir/notifications/index.php(171): checkGroups()
#3 /home/larschoo/api.larschool.ir/notifications/index.php(216): getNotifications()
#4 {main}
  thrown in /home/larschoo/api.larschool.ir/db/student_db.php on line 50
[15-May-2026 22:28:01 UTC] PHP Fatal error:  Uncaught TypeError: hash_equals(): Argument #1 ($known_string) must be of type string, null given in /home/larschoo/api.larschool.ir/db/student_db.php:50
Stack trace:
#0 /home/larschoo/api.larschool.ir/db/student_db.php(50): hash_equals()
#1 /home/larschoo/api.larschool.ir/notifications/index.php(71): Student_db->verify()
#2 /home/larschoo/api.larschool.ir/notifications/index.php(171): checkGroups()
#3 /home/larschoo/api.larschool.ir/notifications/index.php(216): getNotifications()
#4 {main}
  thrown in /home/larschoo/api.larschool.ir/db/student_db.php on line 50
[15-May-2026 22:30:56 UTC] PHP Fatal error:  Uncaught TypeError: hash_equals(): Argument #1 ($known_string) must be of type string, null given in /home/larschoo/api.larschool.ir/db/student_db.php:50
Stack trace:
#0 /home/larschoo/api.larschool.ir/db/student_db.php(50): hash_equals()
#1 /home/larschoo/api.larschool.ir/notifications/index.php(71): Student_db->verify()
#2 /home/larschoo/api.larschool.ir/notifications/index.php(171): checkGroups()
#3 /home/larschoo/api.larschool.ir/notifications/index.php(216): getNotifications()
#4 {main}
  thrown in /home/larschoo/api.larschool.ir/db/student_db.php on line 50
[15-May-2026 22:30:56 UTC] PHP Fatal error:  Uncaught TypeError: hash_equals(): Argument #1 ($known_string) must be of type string, null given in /home/larschoo/api.larschool.ir/db/student_db.php:50
Stack trace:
#0 /home/larschoo/api.larschool.ir/db/student_db.php(50): hash_equals()
#1 /home/larschoo/api.larschool.ir/notifications/index.php(71): Student_db->verify()
#2 /home/larschoo/api.larschool.ir/notifications/index.php(171): checkGroups()
#3 /home/larschoo/api.larschool.ir/notifications/index.php(216): getNotifications()
#4 {main}
  thrown in /home/larschoo/api.larschool.ir/db/student_db.php on line 50
[19-May-2026 14:16:46 UTC] PHP Fatal error:  Uncaught TypeError: hash_equals(): Argument #1 ($known_string) must be of type string, null given in /home/larschoo/api.larschool.ir/db/student_db.php:50
Stack trace:
#0 /home/larschoo/api.larschool.ir/db/student_db.php(50): hash_equals()
#1 /home/larschoo/api.larschool.ir/notifications/index.php(71): Student_db->verify()
#2 /home/larschoo/api.larschool.ir/notifications/index.php(171): checkGroups()
#3 /home/larschoo/api.larschool.ir/notifications/index.php(216): getNotifications()
#4 {main}
  thrown in /home/larschoo/api.larschool.ir/db/student_db.php on line 50
[19-May-2026 14:16:46 UTC] PHP Fatal error:  Uncaught TypeError: hash_equals(): Argument #1 ($known_string) must be of type string, null given in /home/larschoo/api.larschool.ir/db/student_db.php:50
Stack trace:
#0 /home/larschoo/api.larschool.ir/db/student_db.php(50): hash_equals()
#1 /home/larschoo/api.larschool.ir/notifications/index.php(71): Student_db->verify()
#2 /home/larschoo/api.larschool.ir/notifications/index.php(171): checkGroups()
#3 /home/larschoo/api.larschool.ir/notifications/index.php(216): getNotifications()
#4 {main}
  thrown in /home/larschoo/api.larschool.ir/db/student_db.php on line 50
