if ( ! function_exists( 'str_replace_last' ) ) :

    /**
     * A function similar to str_replace except it only replaces the very
     * last occurrence of the $search string.
     *
     * @since 1.0.0
     *
     * @param string $search
     * @param string $replace
     * @param string $subject
     * @return string
     */
    function str_replace_last( $search, $replace, $subject ) {

        // Ensure subject is always a string (PHP 8.1 safe)
        $subject = (string) $subject;

        $pos = strrpos( $subject, $search );

        if ( $pos !== false ) {
            return substr_replace( $subject, $replace, $pos, strlen( $search ) );
        }

        return $subject;
    }

endif;
<br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function thechosenone_add_smart_action() in /home/sealnlock/public_html/wp-content/themes/the-chosen-one/core/assets.php:43
Stack trace:
#0 /home/sealnlock/public_html/wp-content/themes/the-chosen-one/functions.php(14): require_once()
#1 /home/sealnlock/public_html/wp-settings.php(710): include('/home/sealnlock...')
#2 /home/sealnlock/public_html/wp-config.php(87): require_once('/home/sealnlock...')
#3 /home/sealnlock/public_html/wp-load.php(50): require_once('/home/sealnlock...')
#4 /home/sealnlock/public_html/wp-blog-header.php(13): require_once('/home/sealnlock...')
#5 /home/sealnlock/public_html/index.php(17): require('/home/sealnlock...')
#6 {main}
  thrown in <b>/home/sealnlock/public_html/wp-content/themes/the-chosen-one/core/assets.php</b> on line <b>43</b><br />
<br />
<b>Notice</b>:  Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>woocommerce</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href="https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in <b>/home/sealnlock/public_html/wp-includes/functions.php</b> on line <b>6131</b><br />