phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '0cfe047ef78eb90859cd0e76518b314b' 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 ('0cfe047ef78eb90859cd0e76518b314b', -1, 1770081122, 1770081122, 'd849d8d3', -9, 0, 0)

Line : 187
File : sessions.php