phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '18fcbd61b7caa19da9d22b7bac0c3ad2' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('18fcbd61b7caa19da9d22b7bac0c3ad2', -1, 1776247805, 1776247805, 'd849d870', 2, 0, 0)

Line : 187
File : sessions.php