• Hey there, I just changed the settings of my site to PHP8.0. After refreshing the site, an critical error happens and neither the site nor wordpress is accessible anymore.

    I allready tried: disableing all Plugins, changing themes, checking plugins and themes for compatibility, etc.

    I tried to get a debug log using a PHP Error Log Plugin, but it was not able to capture anything.

    The webhost log gave me the following error log, but I have no clue at all what to do with it.

    24.01.2023 12:54:13 arzt-huenfeld.de [client 2a02:908:1b00::] AH01215: Stack trace:: /home/strato/http/premium/rid/95/61/510909561/htdocs/index.php
    24.01.2023 12:54:13 arzt-huenfeld.de [client 2a02:908:1b00::] AH01215: #0 /mnt/web217/a2/61/510909561/htdocs/wp-includes/l10n.php(784): WP_Textdomain_Registry->set(): /home/strato/http/premium/rid/95/61/510909561/htdocs/index.php
    24.01.2023 12:54:13 arzt-huenfeld.de [client 2a02:908:1b00::] AH01215: #1 /mnt/web217/a2/61/510909561/htdocs/wp-includes/load.php(1401): load_textdomain(): /home/strato/http/premium/rid/95/61/510909561/htdocs/index.php
    24.01.2023 12:54:13 arzt-huenfeld.de [client 2a02:908:1b00::] AH01215: #2 /mnt/web217/a2/61/510909561/htdocs/wp-includes/load.php(278): wp_load_translations_early(): /home/strato/http/premium/rid/95/61/510909561/htdocs/index.php
    24.01.2023 12:54:13 arzt-huenfeld.de [client 2a02:908:1b00::] AH01215: #3 /mnt/web217/a2/61/510909561/htdocs/wp-settings.php(74): wp_maintenance(): /home/strato/http/premium/rid/95/61/510909561/htdocs/index.php
    24.01.2023 12:54:13 arzt-huenfeld.de [client 2a02:908:1b00::] AH01215: #4 /mnt/web217/a2/61/510909561/htdocs/wp-config.php(88): require_once(‘/mnt/web217/a2/…’): /home/strato/http/premium/rid/95/61/510909561/htdocs/index.php
    24.01.2023 12:54:13 arzt-huenfeld.de [client 2a02:908:1b00::] AH01215: #5 /mnt/web217/a2/61/510909561/htdocs/wp-load.php(50): require_once(‘/mnt/web217/a2/…’): /home/strato/http/premium/rid/95/61/510909561/htdocs/index.php
    24.01.2023 12:54:13 arzt-huenfeld.de [client 2a02:908:1b00::] AH01215: #6 /mnt/web217/a2/61/510909561/htdocs/wp-blog-header.php(13): require_once(‘/mnt/web217/a2/…’): /home/strato/http/premium/rid/95/61/510909561/htdocs/index.php
    24.01.2023 12:54:13 arzt-huenfeld.de [client 2a02:908:1b00::] AH01215: #7 /mnt/web217/a2/61/510909561/htdocs/index.php(17): require(‘/mnt/web217/a2/…’): /home/strato/http/premium/rid/95/61/510909561/htdocs/index.php
    24.01.2023 12:54:13 arzt-huenfeld.de [client 2a02:908:1b00::] AH01215: #8 {main}: /home/strato/http/premium/rid/95/61/510909561/htdocs/index.php
    24.01.2023 12:54:13 arzt-huenfeld.de [client 2a02:908:1b00::] AH01215: thrown in /mnt/web217/a2/61/510909561/htdocs/wp-includes/class-wp-textdomain-registry.php on line 103: /home/strato/http/premium/rid/95/61/510909561/htdocs/index.php

    Thanks in advance

    The page I need help with: [log in to see the link]

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  • Hi, it is worth checking all required PHP extensions are installed. This page sets out what is essential and what is optional: https://make.wordpress.org/hosting/handbook/server-environment/#php-extensions

    Sometimes you need to add these extensions yourself when switching between PHP versions. It can be very simple to do if you have a GUI like cPanel, but your host might be able to help if you do not.

    I have had some WordPress installs work on 7.4 and 8.1 but not 8.0, so it is worth quickly switching to 8.1 to test if you have the option.

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