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 ('eab802c0075d43f745b53c19160cb5ab', -1, 1714791133, 1714791133, '12bfd4c7', -4, 0)

Line : 158
File : sessions.php