Working code but throwing an error?

@JDKirk @givemeawhisky , thanks for all of your help, managed to get 90 lines of code into 9

const max = 8
const min = 1

export function participants_onchange(event, $w) {
 let participantNmb = $w('#participants').value;
 for (let i = 2; i <= max; i++) 
    $w(`#participantbox${i}`).collapse();
 for (let y = participantNmb; y > min; y--)
        $w(`#participantbox${y}`).expand();
}

Thanks!