[Plugin: Simple Image Widget] display simple image widget on select pages

I want to activate the plugin only on one page. I tried to use conditionals but my php skills suck. I tried:
<?php
if ( is_page(‘private-sector’) )?;
add_action(‘init’, ‘widget_simpleimage_init’, 1);

?>
it gave me a fatal error. I know my logic makes sense but it’s not php logic. any help will be appreciated. thanks

https://www.ads-software.com/extend/plugins/simple-image-widget/