HELP! Enfold causing Woocommerce check-out problems – URGENT

For some reason, all of a sudden, today the checkout process just stopped working. When a customer clicks “Place Order” in the cart section of the website, the site just greys out (as if the order is being processed) but never confirms the order with the thank you page or the confirmation email. However, the order gets processed on the back end as if the process went through, making the customer feel like the order didn’t get placed, especially because the cart doesn’t clear after.

I’ve tried removing plugins and testing it out, but it only works when I apply a standard wordpress theme.

Here are MANY the errors I’m getting through my testing processes:

2018-10-24T15:24:06+00:00 CRITICAL syntax error, unexpected ‘https’ (T_STRING), expecting ‘,’ or ‘)’ in /home/celale_vps/celladorales.com/wp-content/themes/enfold/woocommerce/emails/customer-processing-order.php on line 28

Notice: WC_Cart::get_remove_url is deprecated since version 3.3! Use wc_get_cart_remove_url instead. in /home/celale_vps/celladorales.com/wp-includes/functions.php on line 3853

SyntaxError: Unexpected token < in JSON at position 0