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 ('11988f1882474c107ffb34c689b57af2', -1, 1713998633, 1713998633, '12da267d', -11, 0, 0)

Line : 187
File : sessions.php