«Неустранимая ошибка: необнаруженная ошибка: вызов функции-члена get_cellmap() при значении null» ⇐ Php

[Anonymous]

Я работаю с DomPdf и пытаюсь преобразовать файл в PDF, но получаю следующую ошибку:
Fatal error: Uncaught Error: Call to a member function get_cellmap() on null in
C:\xampp\htdocs\dom\dompdf\src\FrameReflower\TableCell.php:37
Stack trace: #0
C:\xampp\htdocs\dom\dompdf\src\FrameDecorator\AbstractFrameDecorator.php(893):
Dompdf\FrameReflower\TableCell->reflow(NULL) #1
C:\xampp\htdocs\dom\dompdf\src\FrameReflower\TableRow.php(52):
Dompdf\FrameDecorator\AbstractFrameDecorator->reflow() #2
C:\xampp\htdocs\dom\dompdf\src\FrameDecorator\AbstractFrameDecorator.php(893):
Dompdf\FrameReflower\TableRow->reflow(NULL) #3

Код:
require_once './dompdf/autoload.inc.php';
use Dompdf\Dompdf;

$dompdf = new Dompdf();
$dompdf->loadHtml(file_get_contents('./my-file.php'));

$dompdf->setPaper('A4','landscape');
$dompdf->render();

$dompdf->stream('codexworld',array('Attachment'=>0));

my-file.php:












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Phone # (818)644-1965
Fax # (661) 468-7504






Customer Info










Name







Address






Phone











Invoice#








Paid Date













Vehicle Info








Make:







Model:







Year:














Vin #:







Lic.#:







Miles:













Color:







R.O. #:







P.O. #:














Descryption

Hrs
Amount





*******All Parts Supplied By Shop*******














Technician #: 81 (Miguel A.)
Labor Hrs:





Labor Rate (Per Hr):

Labor Price:






Total






Grand Total




Signature Approval:





Paid





Yes
No ( )
P.O. ( )





Not responsible for loss by fire or theft or any other cause beyond our control. I hereby authorize the above repair work to be done with the necessary material & grant
permission to operate equipment for purpose of testing and inspection. An express mechanic's lien is acknowledged to secure the amount of repairs. I agree to pay
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Подробнее здесь: https://stackoverflow.com/questions/431 ... ap-on-null