phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '019130ca8a5201d001a772ad1ab4e5a0' for key 1

INSERT INTO phpbb2_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('019130ca8a5201d001a772ad1ab4e5a0', -1, 1474860831, 1474860831, '36939e1c', 15, 0, 0)

Line : 187
File : sessions.php