Configure Event Markup not working

I had a problem when trying to click the 'edit' button on the configure your event markup admin page.

the problem was - nothing happened when i clicked it.

also a javascript error occurred onclick, saying that the function did not exist

in the end I found out that the javascript was not actually loading on the page. here is what i did to fix it.

in the file 'tern_wp_events.php' I changed a line that said

if($_REQUEST['page'] == 'Configure Event Markup') { ...

to

if($_REQUEST['page'] == 'tern-wp-event-page-mark-up') {...

and it now works.