phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'bef840a3bec50a8ea2d8fe0bb772c6aa' for key 'PRIMARY'

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('bef840a3bec50a8ea2d8fe0bb772c6aa', -1, 1785592787, 1785592787, 'c0a80001', 12, 0, 0)

Line : 187
File : sessions.php