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 ('3a951fe8ae1f00c27cb9ec026611c82e', -1, 1714711911, 1714711911, '0d3a963b', -4, 0)

Line : 158
File : sessions.php