Warning: foreach() argument must be of type array|object, null given in /usr/www/users/schacu/public/client/pdf.php on line 100

Fatal error: Uncaught Exception: FPDF error: Some data has already been output, can't send PDF file (output started at /usr/www/users/schacu/public/client/pdf.php:100) in /usr/www/users/schacu/public/client/lib/fpdf184/fpdf.php:271 Stack trace: #0 /usr/www/users/schacu/public/client/lib/fpdf184/fpdf.php(1049): FPDF->Error() #1 /usr/www/users/schacu/public/client/lib/fpdf184/fpdf.php(999): FPDF->_checkoutput() #2 /usr/www/users/schacu/public/client/pdf.php(179): FPDF->Output() #3 {main} thrown in /usr/www/users/schacu/public/client/lib/fpdf184/fpdf.php on line 271