Fatal error: Uncaught exception 'Exception' with message 'Could not locate PDF on 'samplepdfs/one.pdf'' in /var/www/psweb/_lib/libraries/sys/nfephp/vendor/PDFMerger/PDFMerger.php:71 Stack trace: #0 /var/www/psweb/_lib/libraries/sys/nfephp/vendor/PDFMerger/sample.php(6): PDFMerger->addPDF('samplepdfs/one....', '1, 3, 4') #1 {main} thrown in /var/www/psweb/_lib/libraries/sys/nfephp/vendor/PDFMerger/PDFMerger.php on line 71