JSFiddle - React, Tailwind, and code Playground

HTML

<div style="" class="BBFormValidatorSummary" id="PC17178_formWizard_formWizard_ctl08">Error(s) encountered:<ul><li>Email: Required</li><li>Email: Required</li><li>Cardholder's Name: Required</li><li>Credit Card Number: Required</li><li>Credit Card Type: Required</li><li>Credit Card Expiration: Month Required</li><li>Credit Card Expiration: Year Required</li><li>Card Security Code: Required</li><li>Cardholder's Name: Required</li><li>Credit Card Number: Required</li><li>Credit Card Type: Required</li><li>Credit Card Expiration: Month Required</li><li>Credit Card Expiration: Year Required</li><li>Card Security Code: Required</li><li>Last Name: Required</li><li>Last Name: Required</li></ul></div>

JavaScript

$('#PC17178_formWizard_formWizard_ctl08').each(function() {
    var text = $(this).html();
    $(this).html(text.replace('Error(s) encountered:', 'Veuillez vérifier l’information suivante:')); 
});