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Fatal error: Uncaught exception 'Exception' with message 'FPDF error: Some data has already been output, can't send PDF file' in /home/itsavedu/SCSE.itsav.edu.mx/gestion/pdf/fpdf/fpdf.php:271 Stack trace: #0 /home/itsavedu/SCSE.itsav.edu.mx/gestion/pdf/fpdf/fpdf.php(1063): FPDF->Error('Some data has a...') #1 /home/itsavedu/SCSE.itsav.edu.mx/gestion/pdf/fpdf/fpdf.php(999): FPDF->_checkoutput() #2 /home/itsavedu/SCSE.itsav.edu.mx/gestion/pdf/Reimprimir.php(26): FPDF->Output() #3 {main} thrown in /home/itsavedu/SCSE.itsav.edu.mx/gestion/pdf/fpdf/fpdf.php on line 271