Drupal 8.x

I installed the devel Module and upon reloading I got the above message. Obviously from the below error reportthe webprofiler part of DEVEL is giving me the grief. The question is how to fix it. I tried deleting the DEVEL Module through FTP and reloading the site with no luck (blank screen, but no error message) I then went to phpMyAdmin to find the module in the database (couldn't find any modules). So essentially I am stuck unless I can uninstall DEVEL outside of the interface.

I changed the settings.php to give verbose error handling and got the following:

Hi,

I'm just coming back to using Drupal 9 after many years time off for taking care of my Mom.

I started blogging about teaching, my full time job, and revamping some Drupal 7 sites by downloading Drupal 9 and installing 32 Drupal themes to see what they looked like. I dunno if it will help someone, but I found this kind of quick comparison lacking on the Internet.

I'm a teacher, not a developer, and not the greatest with Drupal, so I'm just coming at it from the point of view of a relatively technical end user. So I hope this is helpful and not annoying.

I have a client who wants to take a bunch of MP3s they're using for a kind of seminary school and make them available online. How can I import these into new nodes in Drupal? I believe there are modules for doing node imports using CSV files, but I can't see how I would attach the file. I am not sure what other mechanisms are out there for helping me accomplish this. Any suggestions?

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