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 ('80cd19e33b5f0e890c2a0b8db02a34fb', -1, 1715225794, 1715225794, '03864c33', -7, 0, 0)

Line : 189
File : sessions.php