phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('e24dc46813e60391ad46aa8901f8ec7a', -1, 1740079373, 1740079373, '12bfd4b5', 2, 0, 0)

Line : 189
File : sessions.php