Drupal 8.x

When I run drush updb, I get

 [error]   (Currently using Missing or invalid theme Array)

How can   I determine which theme is the issue? I had yo uninstall and remove several themes that did not work in D9.

where can I access the theme array to manually fix it?

And one cannot select Drupal 9 on this form!

Dear Drupal community,

Need help, pagination not reset after filtering table via ajax submitting. Guide me what I am doing wrong.

Hello! 

I migrate the website (drupal v. 8.9.0, it has already been updated before!) from shared hosting to the VPS. Configured the environment (Ubuntu 20.04 x64 + Apache/2.4.41 + mod-ruid2 + PHP 7.4 + Percona-server-5.7).

apt install libapache2-mod-ruid2

apt-get install php php-cli php-mysqlnd php-mysql php-json php-gd php-ldap php-odbc php-pdo php-opcache php-pear php-xml php-xmlrpc php-mbstring php-snmp php-soap php-zip php-unzip

apt-get install dom

Hello.

Currently we are using another popular CMS for our website, but we've had lots of issues with it: lack of features without plugins, bad quality plugins advertising premium versions in the admin panel, etc. We would like to make a website from Scratch and are looking for a better solution and so far Drupal looks very promising, it has most of the features we need and doesn't have the downsides of our old system. However, I have some questions that I would like answered to determine if Drupal really is a viable solution for us.

I followed the link to https://www.drupal.org/docs/installing-drupal/trusted-host-settings followed the instructions. They echo my video tutorial instruction.

I edited sites>default>setting.php

$settings['trusted_host_patterns'] = [
  '^www\.ukspeaking\.com$',
 ];

it returns this message on my site:-

'The provided host name is not valid for this server.'

Hi,

I have to scroll up and down to see the contents in my page. Here is the link to the screenshot where you can see the scroll bar

https://imgur.com/a/ur0yA63

Can you please tell me how can I adjust the height of the body element so that I dont have to scroll to see the contents.

Thanks,