phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e78472dc6b3fa7eeca2c6ff8a52d2617' 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 ('e78472dc6b3fa7eeca2c6ff8a52d2617', -1, 1776920901, 1776920901, 'd849d8e6', 1, 0, 0)

Line : 187
File : sessions.php