quick look on google and looks like a problem with preg replace throwing up some errors
mcfly\vendor\composer_components\madhouse\themekitchen\classes\Madhouse\ThemeKitchen\Package.php
lines 338-343
// Compute the relative path to themekitchen.
$relativePath = preg_replace(
'#^.*' . DIRECTORY_SEPARATOR . '(oc-content.*)' . DIRECTORY_SEPARATOR . '?$#',
'$1',
dirname(dirname(dirname(dirname(__FILE__))))
);