PHP Fatal error: Uncaught Error: Typed property DOMDocument::$documentElement must not be accessed before initialization in /var/www/roundcube/vendor/masterminds/html5/src/HTML5/Parser/DOMTreeBuilder.php:275

[iUnstable0]

[22-Dec-2022 20:55:00 Asia/Krasnoyarsk] PHP Fatal error:  Uncaught Error: Typed property DOMDocument::$documentElement must not be accessed before initialization in /var/www/roundcube/vendor/masterminds/html5/src/HTML5/Parser/DOMTreeBuilder.php:275
Stack trace:
#0 /var/www/roundcube/vendor/masterminds/html5/src/HTML5/Parser/Tokenizer.php(399): Masterminds\HTML5\Parser\DOMTreeBuilder->startTag()
#1 /var/www/roundcube/vendor/masterminds/html5/src/HTML5/Parser/Tokenizer.php(141): Masterminds\HTML5\Parser\Tokenizer->tagName()
#2 /var/www/roundcube/vendor/masterminds/html5/src/HTML5/Parser/Tokenizer.php(82): Masterminds\HTML5\Parser\Tokenizer->consumeData()
#3 /var/www/roundcube/vendor/masterminds/html5/src/HTML5.php(161): Masterminds\HTML5\Parser\Tokenizer->parse()
#4 /var/www/roundcube/vendor/masterminds/html5/src/HTML5.php(89): Masterminds\HTML5->parse()
#5 /var/www/roundcube/program/lib/Roundcube/rcube_washtml.php(698): Masterminds\HTML5->loadHTML()
#6 /var/www/roundcube/program/actions/mail/index.php(977): rcube_washtml->wash()
#7 /var/www/roundcube/program/actions/mail/index.php(1021): rcmail_action_mail_index::wash_html()
#8 /var/www/roundcube/program/actions/mail/show.php(748): rcmail_action_mail_index::print_body()
#9 /var/www/roundcube/program/include/rcmail_output_html.php(1484): rcmail_action_mail_show::message_body()
#10 [internal function]: rcmail_output_html->xml_command()
#11 /var/www/roundcube/program/include/rcmail_output_html.php(1322): preg_replace_callback()
#12 /var/www/roundcube/program/include/rcmail_output_html.php(825): rcmail_output_html->parse_xml()
#13 /var/www/roundcube/program/include/rcmail_output_html.php(654): rcmail_output_html->parse()
#14 /var/www/roundcube/program/actions/mail/show.php(164): rcmail_output_html->send()
#15 /var/www/roundcube/program/include/rcmail.php(275): rcmail_action_mail_show->run()
#16 /var/www/roundcube/index.php(278): rcmail->action_handler()
#17 {main}
  thrown in /var/www/roundcube/vendor/masterminds/html5/src/HTML5/Parser/DOMTreeBuilder.php on line 275

this error happens when I try to open some emails, this is very weird as it never happened before now it just happened randomly for no reason, emails that used to work now wont open and instead throw that error

[iUnstable0]

Btw im using php 8.1 fpm nginx fastCGI (Im new to PHP I think I might've accidentally caused this but I'm not sure, what I'm sure is I never touched Roundcube internal PHP code only plugins code)

[iUnstable0]

Okay this doesnt happen to messages sent from other email address but from swisscows.email address.
(Swisscows worked just fine, it just started giving errors today)

[iUnstable0]

OK I tested it happens to HTML messages, not plaintext

[alecpl]

I'm unable to reproduce, but I created an upstream ticket Masterminds/html5-php#220

[stof]

Taking the HTML content of that email (after decoding the quoted-printable encoding) and parsing it with the html5-php library does not produce any error. So the upstream report is not actionable.

[alecpl]

@iUnstable0 what PHP version exactly? Could you try with most recent PHP 8.2.x?

[iUnstable0]

@iUnstable0 what PHP version exactly? Could you try with most recent PHP 8.2.x?

I just upgraded to php8.2-fpm and roundcube to 1.6.1 and the issue is fixed. Thanks!