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 ('9740c79e4867d11299f6a61abf82dfdb', -1, 1715111833, 1715111833, '0316f8d0', -4, 0, 0)

Line : 189
File : sessions.php