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 ('757c1cba53b81d8e8a0ad781f3c2e9f4', -1, 1714368023, 1714368023, '038cc6ad', 23, 0)

Line : 158
File : sessions.php