PokerTracker

i play pokerstars and while when i play cash games my hud stats appearing on the tables when i play tournaments they dont. what am i doing wrong?

Your PokerStars lobby should be in English (Settings -> Global -> Language -> English):

PokerStars Configuration Guide (Language)

If the PokerStars client is not running in English then the HUD may not be able to attach to your tournament tables.