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Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '973f88a8a591fd3ffcc35139f3ca6e69' 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 ('973f88a8a591fd3ffcc35139f3ca6e69', -1, 1715650438, 1715650438, '12ddce49', 18, 0, 0)

Line : 187
File : sessions.php