Code works on mainsite but NOT on subdomain

I am currently using HEADWAYTHEMES on my wordpress multisite network. This week I attempted to use the WOO TUMBLOG plugin on my sites coupled with the code created by David Wang which goes in the custom_functions.php file in order to get the tumblog output:

/* WooTumblog stuff */
// Replaces the default post title with the tumblog post title
add_action(‘headway_before_post_title’, ‘mytumblog_before_title’);
add_action(‘headway_before_excerpt_title’, ‘mytumblog_before_title’);
function mytumblog_before_title(){
woo_tumblog_the_title(“entry-title”);
echo “<!–“;
}
add_action(‘headway_after_post_title’, ‘mytumblog_after_title’);
add_action(‘headway_after_excerpt_title’, ‘mytumblog_after_title’);
function mytumblog_after_title(){
echo “–>”;
}
// Adds tumblog content into your posts
add_action(‘headway_entry_content_open’, ‘mytumblog_content’);
function mytumblog_content(){
woo_tumblog_content();
}

The code and plugin together work perfectly on my main site but with the headway theme network activated the tumblog style does not work on my subdomain

site. I get the tumblog dashboard so the plugin works.

Does this code need to be edited so that it works on my subdomain? I don’t actually want to use the tumblog style on my main site, just on y subdomain site.

Any suggestions or help?