Fatal error: Uncaught Error: Call to undefined function get_field() in /srv/users/mdk-wp-dev/apps/mdk-wp-dev/public/wp-content/themes/MDK/inc/social-login/facebook.php:26 Stack trace: #0 /srv/users/mdk-wp-dev/apps/mdk-wp-dev/public/wp-includes/class-wp-hook.php(353): FacebookLogin->set_variables('') #1 /srv/users/mdk-wp-dev/apps/mdk-wp-dev/public/wp-includes/class-wp-hook.php(377): WP_Hook->apply_filters(NULL, Array) #2 /srv/users/mdk-wp-dev/apps/mdk-wp-dev/public/wp-includes/plugin.php(523): WP_Hook->do_action(Array) #3 /srv/users/mdk-wp-dev/apps/mdk-wp-dev/public/wp-settings.php(779): do_action('init') #4 /srv/users/mdk-wp-dev/apps/mdk-wp-dev/public/wp-config.php(108): require_once('/srv/users/mdk-...') #5 /srv/users/mdk-wp-dev/apps/mdk-wp-dev/public/wp-load.php(50): require_once('/srv/users/mdk-...') #6 /srv/users/mdk-wp-dev/apps/mdk-wp-dev/public/wp-blog-header.php(13): require_once('/srv/users/mdk-...') #7 /srv/users/mdk-wp-dev/apps/mdk-wp-dev/public/index.php(17): require('/srv/users/mdk-...') #8 {main} thrown in /srv/users/mdk-wp-dev/apps/mdk-wp-dev/public/wp-content/themes/MDK/inc/social-login/facebook.php on line 26