Notice: Undefined variable: provider_name in /var/www/wordpress/wp-content/uploads/sites/5/pressbooks/cache/5c1736da0bce3cf33d657e33569f1c19fd6564e1.php on line 8
Fatal error: Uncaught Error: Call to undefined function e() in /var/www/wordpress/wp-content/uploads/sites/5/pressbooks/cache/5c1736da0bce3cf33d657e33569f1c19fd6564e1.php:12
Stack trace:
#0 {main}
thrown in /var/www/wordpress/wp-content/uploads/sites/5/pressbooks/cache/5c1736da0bce3cf33d657e33569f1c19fd6564e1.php on line 12