This plugin prevents the official Stripe for Woo plugin working at checkout because of a JS error.

As you can see, line 37 of twoco.js is
var exp_year = expiry_date[1].trim();

So the plugin is running this JS even when a different payment gateway has been selected by the user.
My hack for now is to only load that function if 2checkout is the selected gateway.
jQuery(function($){
var selected_gateway = jQuery("input[name='payment_method']:checked").val();
if( typeof selected_gateway!=="undefined" ){
//only run 2checkout functions if it's selected
if( selected_gateway === "nmwoo_2co" ){
var twoco_env = twoco_vars.is_demo ? 'sandbox' : 'production';
TCO.loadPubKey( twoco_env );
var checkout_form = $( 'form.woocommerce-checkout' );
checkout_form.on( 'checkout_place_order', tokenRequest );
}
}
});