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 ('c50061a6352e7b92608c7c991cc0d2be', -1, 1563573605, 1563573605, '12d16807', 39, 0, 0)

Line : 189
File : sessions.php