phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd020fe9f742f239cd23e51a13e8b2440' 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 ('d020fe9f742f239cd23e51a13e8b2440', -1, 1784280507, 1784280507, 'd849d992', 9, 0, 0)

Line : 187
File : sessions.php