Warning: Undefined variable $pdo in /home/carloscapoeira/public_html/exportar_calendario_eventos_pdf.php on line 59

Fatal error: Uncaught Error: Call to a member function prepare() on null in /home/carloscapoeira/public_html/exportar_calendario_eventos_pdf.php:59
Stack trace:
#0 {main}
  thrown in /home/carloscapoeira/public_html/exportar_calendario_eventos_pdf.php on line 59