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 ('f45d35f97285b01ca761bb4c58bc19f4', -1, 1714451971, 1714451971, '12bfea3e', -4, 0)

Line : 158
File : sessions.php