phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4a20d50384690afd89f344793a4a1f3d' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('4a20d50384690afd89f344793a4a1f3d', -1, 1772875393, 1772875393, 'd849d8d7', 2, 0)

Line : 180
File : /www/includes/sessions.php