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 ('fb6b9b4a73de5b84e6bf527229a93fbc', -1, 1713565924, 1713565924, '0391aff3', -4, 0, 0)

Line : 187
File : sessions.php