Error in menu when changing php 7.1

Hi again
Thank you for feedback us, I will instructions custom it
in file: ...modules\mod_jux_megamenu\helper.php
you can edit from line 611 to line 621

for ($col = 0; $col < $cols; $col++) {
$colw = $this->items[$pid]->megaparams->get('colw' . ($col + 1), 0);
if (!$colw)
$colw = $this->items[$pid]->megaparams->get('colw');
if (is_null($colw) || !is_numeric($colw))
$colw = $this->getParam('megacss-colwidth', 200);
//$colw = 200;
if (is_null($colw) || !is_numeric($colw))
$colw = 200;
$width += $colw;
}

edit:

for ($col = 0; $col < $cols; $col++) {
$colw = $this->items[$pid]->megaparams->get('colw' . ($col + 1), 0);
if (!$colw){
$colw = $this->items[$pid]->megaparams->get('colw');
}
if (is_null($colw) || !is_numeric($colw)){
$colw = $this->getParam('megacss-colwidth', 200);
}
//$colw = 200;
if (is_null($colw) || !is_numeric($colw)){
$colw = 200;
$width += $colw;
}
}

Hope it will help you
Thanks