The “catalog.leftnav” block threw an exception, and it can’t be rendered

On Magento 2.4.2 front-end checkout page I get a blank screen.

EXCEPTION LOG SAYS:

The "catalog.leftnav" block threw an exception, and it can't be rendered. {"exception":"[object] (Magento\Framework\Exception\LocalizedException(code: 0): The "catalog.leftnav" block threw an exception, and it can't be rendered. at vendor/magento/framework/View/Element/ExceptionHandlerBlock.php:59)

CHECKOUT PAGE VIEW SOURCE SAYS:

    
        
            
        
    
    var elempr6XFJZf = document.querySelector('#checkout-loader img');
if (elempr6XFJZf) {
elempr6XFJZf.style.position = 'absolute';
}    
<script type="text/x-magento-init">
    {
        "#checkout": {
            "Magento_Ui/js/core/app": An error has happened during application run. See exception log for details.