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 ('18824dcf7a805e057057005f28f845b2', -1, 1714317097, 1714317097, '038d6478', 20, 0)

Line : 158
File : sessions.php