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 ('209cf5bfeba7dde3e87e4fd5fd2f1f48', -1, 1560859955, 1560859955, '22eb8fbe', 3, 0, 0)

Line : 189
File : sessions.php