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 ('173cf8c79861f4e32a0b1ec3c115a0ab', -1, 1714302222, 1714302222, '0389b285', 11, 0)

Line : 158
File : sessions.php