[RMVX ACE] HUD TROUBLE HELP

I'm making a HUD based on the player's decisions. If the player fails after 5 wrong decisions, it's a game over. Unfortunately, even though the HUD activates after I called the common event, when I do the wrong decisions, the HUD doesn't decrease. What's happening?

This is the common event


And this is when I try to call the script. The HUD appears, but it doesn't dicrease.