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 ('e5fab3ff4da28fa2fc7ed3e32cff8d96', -1, 1749679558, 1749679558, 'd849d836', -9, 0, 0)

Line : 190
File : sessions.php