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 ('c7d1acc59276c0d35bd6c27cad117c74', -1, 1749820178, 1749820178, 'd849d8a9', -9, 0, 0)

Line : 190
File : sessions.php