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 ('0e35ec27f22fc765dbb4456381400a61', -1, 1714218448, 1714218448, '0a020003', -9, 0, 0)

Line : 187
File : sessions.php