Fatal error: Uncaught Error: Call to undefined function thumbnail_generator() in /var/www/vhosts/inskola.com/httpdocs/wp-content/themes/wplms/includes/bp-custom.php:125 Stack trace: #0 /var/www/vhosts/inskola.com/httpdocs/wp-includes/class-wp-hook.php(308): wplms_show_instructor_courses() #1 /var/www/vhosts/inskola.com/httpdocs/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters() #2 /var/www/vhosts/inskola.com/httpdocs/wp-includes/plugin.php(517): WP_Hook->do_action() #3 /var/www/vhosts/inskola.com/httpdocs/wp-content/themes/wplms/members/single/profile.php(24): do_action() #4 /var/www/vhosts/inskola.com/httpdocs/wp-includes/template.php(783): require_once('/var/www/vhosts...') #5 /var/www/vhosts/inskola.com/httpdocs/wp-includes/template.php(718): load_template() #6 /var/www/vhosts/inskola.com/httpdocs/wp-content/themes/wplms/members/single/home.php(48): locate_template() #7 /var/www/vhosts/inskola.com/httpdocs/wp-includes/template.php(783): require_once('/var/www/vhosts...') #8 /var/www/vhosts/inskola.com/httpdoc in /var/www/vhosts/inskola.com/httpdocs/wp-content/themes/wplms/includes/bp-custom.php on line 125