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 ('455f7588685830db43b4d03a90ed2b17', -1, 1751961019, 1751961019, 'd849d85b', 42, 0, 0)

Line : 190
File : sessions.php