Warning: Cannot modify header information - headers already sent by (output started at /X_kopia/includes/config.php:1) in /X_kopia/mpdf/mpdf.php on line 7076

Warning: Cannot modify header information - headers already sent by (output started at /X_kopia/includes/config.php:1) in /X_kopia/mpdf/mpdf.php on line 1727
mPDF error: Some data has already been output to browser, can't send PDF file