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) VALUES ('3bb004e6ca1e5b8c7beda114e021acc5', -1, 1714771763, 1714771763, '03914d72', 5, 0)

Line : 158
File : sessions.php