NextCloud page not displaying correctly

I am still seeing the issue of page not loading properly with version 25.0.2:

I tried disabling the theming app, but it does not allow theming to disabled:
pi@raspberrypi:/var/www/nextcloud $ sudo -u www-data php occ app:disable theming
theming can’t be disabled.

I am not using redis or any cache server:
Below is my config file:

<?php $CONFIG = array ( 'instanceid' => '############', 'passwordsalt' => '#######################', 'secret' => '###################################', 'trusted_domains' => array ( 0 => '###.###.###.###', ), 'datadirectory' => '/var/www/nextcloud/data', 'dbtype' => 'mysql', 'version' => '25.0.2.3', 'overwrite.cli.url' => 'https://###.###.###.###/nextcloud', 'dbname' => '###########', 'dbhost' => 'localhost', 'dbport' => '', 'dbtableprefix' => 'oc_', 'mysql.utf8mb4' => true, 'dbuser' => '##############', 'dbpassword' => '#####################', 'installed' => true, 'loglevel' => 0, 'updater.secret' => '#####################################', 'maintenance' => false, 'theme' => '', ); PHP version: PHP8.0 Any ideas?