Shortcode in template file – can't activate lightbox

I have added a gallery shortcode in my template file and can’t seem to figure out how to activate the lightbox for these gallery images. I assume it has to do with link=” ”

<?php echo do_shortcode(‘[gallery size="sidebar-thumb" exclude="117,118,119" columns="3" link="file"]‘); ?>

These are the codex options – http://codex.ww.wp.xz.cn/Gallery_Shortcode

Any help is appreciated. Thank you.

https://ww.wp.xz.cn/plugins/simple-lightbox/