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 ('b74e1c2e763232a76a8705855313ccf0', -1, 1714360611, 1714360611, '03864e6a', -7, 0)

Line : 158
File : sessions.php