Hand-picked products block in wordpress has critical error

I am receiving a critical error in my wordpress block and just needed some guidance on what it could be. The code is working great in front end, but when I try to edit a page in wordpress, the hand-picked products block is stating there is an erro.

When I debug, the error states:

[21-Oct-2020 12:20:04 UTC] PHP Fatal error:  Uncaught Error: Call to a member function find_product_in_cart() on null in /home4/metis/public_html/staging/4326/wp-content/plugins/code-snippets/php/snippet-ops.php(446) : eval()'d code:4
Stack trace:
#0 /home4/metis/public_html/staging/4326/wp-includes/class-wp-hook.php(287): redirect_product_exist_in_cart('?add-to-cart=43...', Object(WC_Product_Simple))
#1 /home4/metis/public_html/staging/4326/wp-includes/plugin.php(206): WP_Hook->apply_filters('?add-to-cart=43...', Array)
#2 /home4/metis/public_html/staging/4326/wp-content/plugins/woocommerce/includes/class-wc-product-simple.php(51): apply_filters('woocommerce_pro...', '?add-to-cart=43...', Object(WC_Product_Simple))
#3 /home4/metis/public_html/staging/4326/wp-content/plugins/woo-gutenberg-products-block/src/BlockTypes/AbstractProductGrid.php(471): WC_Product_Simple->add_to_cart_url()
#4 /home4/metis/public_html/staging/4326/wp-content/plugins/woo-gutenberg-products-block/src/BlockTypes/AbstractProductGrid.php(446): Automattic\WooCommer in /home4/metis/public_html/staging/4326/wp-content/plugins/code-snippets/php/snippet-ops.php(446) : eval()'d code on line 4

I did some investigation and it's these two snippets of code that is causing the issue. Basically one changes the add to cart text to already in cart if product is already in cart. The other snippet directs user to cart page if product already in cart.

add_filter( 'woocommerce_product_add_to_cart_text', 'woocommerce_custom_add_to_cart_text', 10, 2 );
function woocommerce_custom_add_to_cart_text( $add_to_cart_text, $product ) {
    // Get cart
    $cart = WC()->cart;
    
    // If cart is NOT empty
    if ( ! $cart->is_empty() ) {

        // Iterating though each cart items
        foreach ( $cart->get_cart() as $cart_item_key => $cart_item ) {
            // Get product id in cart
            $_product_id = $cart_item['product_id'];
     
            // Compare 
            if ( $product->get_id() == $_product_id ) {
                // Change text
                $add_to_cart_text = 'Already in cart';
                break;
            }
        }
    }

    return $add_to_cart_text;
}

add_filter( 'woocommerce_product_add_to_cart_url', 'redirect_product_exist_in_cart', 10, 2 );
function redirect_product_exist_in_cart( $add_to_cart_url, $product ){
 
    if( WC()->cart->find_product_in_cart( WC()->cart->generate_cart_id( $product->id ) ) // if in the cart
    && $product->is_purchasable() // we also need these two conditions
    && $product->is_in_stock() ) {
        $add_to_cart_url = wc_get_cart_url();
    }
 
    return $add_to_cart_url;
 
}

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