Problem with hooks, causing content updating error

I’m using the Theme Customisations plugin by Woocommerce to work with one of the Woo child themes. I’m not really great at PHP yet and I think maybe what I’ve written might be the reason this is causing the error. I successfully swapped where the cart and the search bar were hooked in. It was working great until I tried to add in the bottom section with the “Added Login link to top header”. I wanted this link before the cart. Now I get errors like “Updating failed” when I try to update a page or any other content updates.

WP version – 5.1.1
Theme – Homestore (Storefront child) Version: 2.0.29

/*Custom Header hook changes
 * Swapped search and cart
 * */
add_action('storefront_before_header', 'remove_storefront_product_search');
  function remove_storefront_product_search(){
    remove_action( 'storefront_header', 'storefront_product_search', 10);
  }
add_action( 'storefront_header', 'storefront_product_search', 30 );
add_action('storefront_before_header', 'remove_storefront_header_cart');
  function remove_storefront_header_cart(){
    remove_action( 'storefront_header', 'storefront_header_cart', 30);
  }
add_action( 'storefront_header', 'storefront_header_cart', 12 );
?>
<!-- Added Login link to top header -->
<?php
add_action( 'storefront_header', 'add_login_link', 11 );
  function add_login_link() {
    echo '<div class=login-top-link>
            <a href=https://elevnn.com/my-account>Login</a>
          </div>';
  }
?>
<?php