PHP not displaying on page

Hi there,
I have installed the plugin and look forward to getting it working.

I am using it for a PHP snippet, and am finding that it isn’t quite working.

My snippet contains this:
https://s1110.photobucket.com/user/toby012345/media/post-snippet-page.gif.html
https://s1110.photobucket.com/user/toby012345/media/post-snippet-wp.gif.html

But it only displays a warning on the actual page, like this:

Parse error: syntax error, unexpected ‘<‘ in /home2/mycomputer/public_html/mywebsite.com/wp-content/plugins/post-snippets/src/PostSnippets/Shortcode.php(97) : eval()’d code on line 1

I realise that this error might be attributed to me not typing the correct PHP, but I’m not entirely certain.

Any help would be appreciated.

https://www.ads-software.com/plugins/post-snippets/