phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd4d6e08c101a43bce7856b511429f10e' 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 ('d4d6e08c101a43bce7856b511429f10e', -1, 1766516964, 1766516964, 'd849d8a2', 1, 0, 0)

Line : 187
File : sessions.php