A PHP Error was encountered

Severity: Notice

Message: Undefined index: data

Filename: admin/Download_pdf.php

Line Number: 124

Backtrace:

File: /home/qetour/web_data/public_html/application/controllers/admin/Download_pdf.php
Line: 124
Function: _error_handler

File: /home/qetour/web_data/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: file_get_contents(): Filename cannot be empty

Filename: admin/Download_pdf.php

Line Number: 137

Backtrace:

File: /home/qetour/web_data/public_html/application/controllers/admin/Download_pdf.php
Line: 137
Function: file_get_contents

File: /home/qetour/web_data/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/qetour/web_data/public_html/system/core/Exceptions.php:271)

Filename: core/Common.php

Line Number: 570

Backtrace:

An uncaught Exception was encountered

Type: setasign\Fpdi\PdfParser\PdfParserException

Message: Unable to find PDF file header.

Filename: /home/qetour/web_data/public_html/js/fpdi/PdfParser/PdfParser.php

Line Number: 130

Backtrace:

File: /home/qetour/web_data/public_html/js/fpdi/PdfParser/PdfParser.php
Line: 169
Function: resolveFileHeader

File: /home/qetour/web_data/public_html/js/fpdi/PdfReader/PdfReader.php
Line: 82
Function: getPdfVersion

File: /home/qetour/web_data/public_html/js/fpdi/FpdiTrait.php
Line: 182
Function: getPdfVersion

File: /home/qetour/web_data/public_html/application/views/backend/pdf/package.php
Line: 32
Function: setSourceFile

File: /home/qetour/web_data/public_html/application/controllers/admin/Download_pdf.php
Line: 162
Function: view

File: /home/qetour/web_data/public_html/index.php
Line: 315
Function: require_once