Wordpress adding new fields and posts

Hi guys, again

So I have been through much of how to build a wordpress theme, No issues with following the videos but I have tried to give it a try away from the video.

I did what I did in the video, got the two plugins Custom Fields and CPT UI

I have created a new post in CPT UI called 'showreel' in Custom Fields I have created a few fields called title of showreel image and description

I can create a new post? I think its called under the showreel like a new blog post. asking for the right things, a title, an image and a text area description no problem.

So I then turn to the code to try and show it on the front-page.php

in the video Zac uses the_post and have_posts, using this will show the posts post. as expected.

So trying to copy the above my front-page.php looks like this

```<?php get_header() ?> <p>I am the mainpage </p>

<?php if ( have_showreel ( ) ) : while ( have_showreel ( ) ) : the_showreel ( ) ; ?>
<h3><?php title_of_showreel() ;?></h3>
<?php the_content(); ?>
<hr>

<?php endwhile; else: ?> <p>There are no posts </p> <?php endif; ?> <?php get_footer() ?>```

this comes up with the following when in wordpress,

This is the header.php

I am the mainpage

Fatal error: Call to undefined function have_showreel() in /home/loki180/public_html/wp-content/themes/wpdance/front-page.php on line 4

So I am guessing it does not know what have_showreal means. I am confused on how to do this.

I have been looking through past videos I have watched to find the answer but could not find anything yet.

Thanks for any help