Newspaper does not work

Hi, I’m currently using another theme, I wanted to go back to Newspaper, but I can’t.
when installing the new theme (NewsPaper 11), I get the following message:

Fatal error: Uncaught TypeError: ftp_fget(): Argument #1 ($ftp) must be of type resource, null given in /var/www/html/wp-admin/includes/class-wp-filesystem-ftpext.php:146 Stack trace: #0 /var/www/html/wp-admin/includes/class-wp-filesystem-ftpext.php(146): ftp_fget() #1 /var/www/html/wp-content/themes/Newspaper/includes/wp-booster/wp-admin/tagdiv-view-theme-plugins.php(116): WP_Filesystem_FTPext->get_contents() #2 /var/www/html/wp-content/themes/Newspaper/includes/wp-booster/tagdiv-wp-booster-functions.php(383): require_once(‘…’) #3 /var/www/html/wp-includes/class-wp-hook.php(292): {closure}() #4 /var/www/html/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters() #5 /var/www/html/wp-includes/plugin.php(484): WP_Hook->do_action() #6 /var/www/html/wp-admin/admin.php(259): do_action() #7 {main} thrown in /var/www/html/wp-admin/includes/class-wp-filesystem-ftpext.php on line 146
There is a critical error on your website. Check your email for instructions.

without wordpress debug enabled, I just get the message:

There is a critical error on your website. Check your email for instructions.

This message appears when td-composer plugin and WordPress debug are activated, removing the plugin the message disappears.

I’m already on the latest version of WordPress, I’ve reinstalled WordPress, I’ve disabled all plugins, leaving only the theme and only the td-composer plugin and the problem still happens.

Theme requirements are being met, but even so, it’s not working.

Could you tell me what I need to do to fix this problem?

Hi, nothing has changed.
I copied the content folder to another place, deleted all the contents of the website folder (including the folder itself), installed wordpress again, pasted the content folder again and the theme still doesn’t work.
just install, you don’t even need to activate the tagDiv Composer plugin the error appears, then when you activate the plugin, it still changes the wp-config permission, leaving 600, then only the site works, but the admin panel I can’t enter.