phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('e9e537237be42755149410bf9087742c', -1, 1737597878, 1737597878, '0387bfe4', 40, 0, 0)

Line : 187
File : sessions.php