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 ('a38a1f6832f1231aa30e4b62a76bc89c', -1, 1566502920, 1566502920, '12e8ab12', 0, 0, 0)

Line : 189
File : sessions.php