Contact Form 7: Page not found after sending form data

Write the URL of the pages, please?

Link
Thank you.

Me too

Before:
https://www.shiatsuworksamsterdam.com/contact/

After:
https://www.shiatsuworksamsterdam.com/contact/#wpcf7-f2-p2-o1
:Sorry, no posts matched your criteria.:

PLus, I have a very simple page:

<div id=”content-right”>

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>

<h1><?php the_title(); ?></h1>
<?php the_content();?>

<?php endwhile; else: ?>

<p><?php _e(‘Sorry, no posts matched your criteria.’); ?></p>

<?php endif; ?>
</div>

having the exact same problem as “rpb1001”

got an URL that ends with #wpcf7-f2-p2-o1
and a page the says:

“Sorry, no posts matched your criteria”

after trying to send an email using the contact form.