phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_002sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('399246d2fa09d6a282a5d133939c7fe0', -1, 1736590187, 1736590187, '038a8695', -10, 0, 0)

Line : 216
File : sessions.php