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 ('cc4d6e0a2558aeff52831f6dd616197b', -1, 1715204566, 1715204566, '12ddde2f', 4, 0, 0)

Line : 189
File : sessions.php