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 ('0316254b7604cb1ea0bf2bb86e7d3146', -1, 1748693959, 1748693959, '0394e3c5', -9, 0, 0)

Line : 190
File : sessions.php