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 ('93d85879c42e6796075f90797a504e46', -1, 1713586927, 1713586927, '03886140', -4, 0, 0)

Line : 187
File : sessions.php