Sorry, I'm not hugely technical, in fact not at all really. I was pleased with myself for installing your plugin into my wordpress site, but I can't get it to work. This error comes up:
Fatal error: Call to undefined function get_the_post_thumbnail() in /home/medavia/public_html/wp-content/plugins/simple-staff-list/_inc/admin-views.php on line 78
I'm sure I just need a step-by-step guide to getting this working.
Thanks very much.