Hello,

I am having difficulty installing Piwigo. My server is running and I'm able to submit the installation form after which the screen goes blank and then I see the following in the error.log.

2023/03/06 00:15:50 [error] 1002#1002: *8 FastCGI sent in stderr: "PHP message: PHP Warning:  Trying to access array offset on value of type null in /data/n...n/photos/admin/include/plugins.class.php on line 383PHP message: PHP Warning:  Trying to access array offset on value of type null in /data/n...n/photos/admin/include/plugins.class.php on line 383PHP message: PHP Fatal error:  Uncaught Error: Class "DOMDocument" not found in /data/n...n/photos/include/emogrifier.class.php:406
Stack trace:
#0 /data/n...n/photos/include/emogrifier.class.php(233): Emogrifier->createXmlDocument()
#1 /data/n...n/photos/include/functions_mail.inc.php(951): Emogrifier->emogrify()
#2 /data/n...n/photos/include/functions_mail.inc.php(849): move_css_to_body()
#3 /data/n...n/photos/install.php(520): pwg_mail()
#4 {main}
  thrown in /data/n...n/photos/include/emogrifier.class.php on line 406" while reading response header from upstream, client: x.x.x.x, server: ____.xyz, request: "POST /photos/install.php?language=en_US HTTP/1.1", upstream: "fastcgi://unix:/run/php/php8.1-fpm.sock:", host: "____.xyz", referrer: "https://_____.xyz/photos/install.php?language=en_US"

Here are the versions of pertinent software:

mysql  Ver 8.0.32-0ubuntu0.22.04.2 for Linux on x86_64 ((Ubuntu))

PHP 8.1.2-1ubuntu2.11 (cli) (built: Feb 22 2023 22:56:18) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.1.2, Copyright (c) Zend Technologies
    with Zend OPcache v8.1.2-1ubuntu2.11, Copyright (c), by Zend Technologies

php8.1-gd

nginx version: nginx/1.18.0 (Ubuntu)

Piwigo 13.6.0

Additional Info:

MySQL has the db set up and the mysql User has been created for it. I then entered those details into the Piwigo installation form. For the rest of the form, the admin stuff, I entered new info - was it supposed to be based off of admin details I set up elsewhere?

Last edited by wharton_koala (2023-03-06 02:03:11)