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Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b4b9179dddda3533ca2418fa469c6b59' for key 'PRIMARY'

INSERT INTO trunghocduytan_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('b4b9179dddda3533ca2418fa469c6b59', -1, 1746162837, 1746162837, '030c6bc0', -9, 0, 0)

Line : 187
File : sessions.php