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 ('5af6e0809e4770166edda5577d36bbc7', -1, 1713559033, 1713559033, '030c296a', -2, 0, 0)

Line : 187
File : sessions.php