Custom bullet points have disappeared on live site but can see them when editing in squarespace

Hello

The custom bullet points on my live website are not showing up (below), but when I go to edit the site in Squarespace they are visible. I've attached screenshots. I have no idea why this isn't working.

The live site:

When on squarespace domain they show up like this:

the website is lewisfinancial.nz

or squarespace domain: https://frog-purple-6hlt.squarespace.com/

It would be amazing if anyone could help.

Thank you!

Hi,

Please check your image url. It shows white page

[data-section-id="633a3aae1c8e5f6f578ad5ff"] .sqs-block-content li:before {
    content: '' !important;
    display: block;
    height: 20px;
    position: relative;
    top: 15px;
    left: -40px;
    width: 20px;
    background-image: url(https://static1.squarespace.com/static/622539471d84be20e16172e5/t/633b4c41072d56292613f4b6/1664830529403/tick-lewis-financial.png);
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    margin-right: 10px;
    margin-top: -15px;
    margin-bottom: -20px
}

The image url in the code doesn't exist, it shows white page