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 ('876888c0f5133e4c0580e8a2814fcb8b', -1, 1563420954, 1563420954, '035149e9', 42, 0, 0)

Line : 189
File : sessions.php