How set 3 column?

Hello, when I started with stat widget the first 6 cards were displayed well one next to the other (column of 3) but when I added more cards they began to put one under the other like this and they changed to 1 single column, attached capture, does anyone know what causes this automatic change? How can I make it 3 columns? I tried protected int | string | array $columnSpan = 3; but nothing change