phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('030fe7f85145709910b49b90fd762002', -1, 1591506239, 1591506239, '12d08421', -4, 0, 0)

Line : 187
File : sessions.php