Fatal error: Uncaught Error: Call to a member function query() on null in /var/www/clients/client1/web2/web/wp-content/themes/szmo_2020/classes/lib/DatabaseManager.php:21
Stack trace:
#0 /var/www/clients/client1/web2/web/wp-content/themes/szmo_2020/classes/models/PostList.php(250): DM->szmo_query17()
#1 /var/www/clients/client1/web2/web/wp-content/themes/szmo_2020/classes/models/PostList.php(212): PostList->FetchPostList()
#2 /var/www/clients/client1/web2/web/wp-content/themes/szmo_2020/classes/models/PostList.php(336): PostList->MakeQuery()
#3 /var/www/clients/client1/web2/web/wp-content/themes/szmo_2020/archive.php(48): PostList->get_posts()
#4 /var/www/clients/client1/web2/web/wp-includes/template-loader.php(106): include('/var/www/client...')
#5 /var/www/clients/client1/web2/web/wp-blog-header.php(19): require_once('/var/www/client...')
#6 /var/www/clients/client1/web2/web/index.php(17): require('/var/www/client...')
#7 {main}
thrown in /var/www/clients/client1/web2/web/wp-content/themes/szmo_2020/classes/lib/DatabaseManager.php on line 21