Why does mPDF break on lists?

Question

PHP

I use https://mpdf.github.io library to convert html to pdf.
I look at the available tags in the docks: https://mpdf.github.io/html-support/html-tags.html
ol and ul are. But in reality, my mPDF dies in the presence of ol or ul. At what with li without ol or ul there are no problems.

error example

An Error occurred while handling another error:
MpdfException: WriteHTML() requires $html be an integer, float, string, boolean or an object with the __toString() magic method. in somepath\vendor\mpdf\mpdf\mpdf.php:15884
...
Previous exception:
yii\base\ErrorException: A non-numeric value encountered in 
somepath\vendor\mpdf\mpdf\Tag.php:1889

Who knows what's wrong? So far, I got out of the situation with a helper that forms a set of paragraphs from the list, but this is not very convenient. Is it possible to make lists work in mpdf?

Answer 1

What does dying mean? If it stops working, then you need to turn on debug and look at errors, if it distorts the overall picture in pdf, then most likely it doesn’t, it means that it works like that and cannot be otherwise.