A PHP Error was encountered

Severity: Warning

Message: imagecreatefrompng(): gd-png: libpng warning: Interlace handling should be turned on when using png_read_image

Filename: lib/Cpdf.php

Line Number: 5612

Backtrace:

File: /home/cosco/public_html/application/libraries/dompdf/lib/Cpdf.php
Line: 5612
Function: imagecreatefrompng

File: /home/cosco/public_html/application/libraries/dompdf/lib/Cpdf.php
Line: 5810
Function: addImagePngAlpha

File: /home/cosco/public_html/application/libraries/dompdf/src/Adapter/CPDF.php
Line: 868
Function: addPngFromFile

File: /home/cosco/public_html/application/libraries/dompdf/src/Renderer/Image.php
Line: 114
Function: image

File: /home/cosco/public_html/application/libraries/dompdf/src/Renderer.php
Line: 293
Function: render

File: /home/cosco/public_html/application/libraries/dompdf/src/Renderer.php
Line: 127
Function: _render_frame

File: /home/cosco/public_html/application/libraries/dompdf/src/Renderer.php
Line: 194
Function: render

File: /home/cosco/public_html/application/libraries/dompdf/src/Renderer.php
Line: 194
Function: render

File: /home/cosco/public_html/application/libraries/dompdf/src/Renderer.php
Line: 194
Function: render

File: /home/cosco/public_html/application/libraries/dompdf/src/Renderer.php
Line: 194
Function: render

File: /home/cosco/public_html/application/libraries/dompdf/src/Renderer.php
Line: 194
Function: render

File: /home/cosco/public_html/application/libraries/dompdf/src/Renderer.php
Line: 194
Function: render

File: /home/cosco/public_html/application/libraries/dompdf/src/Renderer.php
Line: 194
Function: render

File: /home/cosco/public_html/application/libraries/dompdf/src/FrameReflower/Page.php
Line: 148
Function: render

File: /home/cosco/public_html/application/libraries/dompdf/src/FrameDecorator/AbstractFrameDecorator.php
Line: 895
Function: reflow

File: /home/cosco/public_html/application/libraries/dompdf/src/Dompdf.php
Line: 815
Function: reflow

File: /home/cosco/public_html/application/libraries/Pdf.php
Line: 27
Function: render

File: /home/cosco/public_html/application/controllers/Health_fitness.php
Line: 434
Function: createPDF

File: /home/cosco/public_html/index.php
Line: 368
Function: require_once

Unable to stream pdf: headers already sent