phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd4dd0af716a1585a9d542d67ab199872' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('d4dd0af716a1585a9d542d67ab199872', -1, 1771195345, 1771195345, 'd849d800', -4, 0, 0)

Line : 187
File : sessions.php