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 ('c8920b9f58609ec92fe4b1c549b97862', -1, 1737549497, 1737549497, '12e2ba99', 64, 0, 0)

Line : 187
File : sessions.php