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 ('a2e70c7c99cc0bab0e0bf98228d9f7a1', -1, 1751317917, 1751317917, 'd849d844', 37, 0, 0)

Line : 190
File : sessions.php