phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('6a7af7c1b9a0294577e11d7e1e8c2383', -1, 1715009171, 1715009171, '12d9dc72', 0, 0, 0)

Line : 189
File : sessions.php