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 ('d3d9dbbbd1f1bc26293c4110a9920b0e', -1, 1737556404, 1737556404, '0315692e', 6, 0, 0)

Line : 187
File : sessions.php