Code Snippets Not working

I installed and enabled Code Snippets, and added a PHP file successfully.
I added a 2nd file, and that worked successfully.
I added a 3rd file and i got the white screen of death:

Warning: require_once(/home/customer/www/englishcocker.org/public_html/wp-content/plugins/code-snippets/php/templates/directory.php): failed to open stream: No such file or directory in /home/customer/www/englishcocker.org/public_html/wp-content/plugins/code-snippets/php/snippet-ops.php(469) : eval()'d code on line 23

Fatal error: require_once(): Failed opening required '/home/customer/www/englishcocker.org/public_html/wp-content/plugins/code-snippets/php/templates/directory.php' (include_path='.:/usr/local/php74/pear') in /home/customer/www/englishcocker.org/public_html/wp-content/plugins/code-snippets/php/snippet-ops.php(469) : eval()'d code on line 23
There has been a critical error on this website.

I got some help, and a developer modified the code as follows:

$result = eval($code);
line 469 in target file
originally this was
$result = true;

The site returned to normal, so i tried using the 2 original snippets that i knew worked, but they don’t.

I tried deactivating the plugin and re-installing it, and i got another white screen (same message). so i went in and modified that fix back to its original:
$result = true;

I would love to be able to use Code Snippets, but i have no idea how i can delete all of the files/folders/data from my WordPress dashboard so i could start from scratch.

Any help would be highly appreciated.