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 ('63e09f762aaceb704a6b4761bc1e8d41', -1, 1713585729, 1713585729, '038a7ac3', -2, 0, 0)

Line : 187
File : sessions.php