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 ('c3f5d795b1b9e3fdd5c7a713388cd249', -1, 1713556525, 1713556525, '0387d5d6', -8, 0, 0)

Line : 187
File : sessions.php