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 ('37a2e17b5aa2ebc486e2b9125ab49b65', -1, 1714792788, 1714792788, '0d3afc08', 20, 0)

Line : 158
File : sessions.php