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 ('bd5792314d095436c79e2c05896fc0b3', -1, 1563602780, 1563602780, '12cef11a', -11, 0, 0)

Line : 189
File : sessions.php