I HAVE A PROBLEM INSTALLING GAMES THAT DOESN'T LET ME

Hi people, I'm new to this and 2 days ago I unlocked my PS Vita Fat with the tutorial in the link and everything was fine, except I had problems when I tried to install the games that I inserted through the app folder. Then I entered Vitashell and refreshed the livearea and the games appeared normally. But at one point I downloaded several games, of which when I refreshed the livearea it only showed me that 2 games were updated. When I exited, only 2 games appeared. I already searched and I can't find a solution to this.