Fatal error: Uncaught Error: Call to a member function query() on null in /var/www/noteswp.new/wp-content/plugins-backup/dokan-lite/includes/upgrades/dokan-upgrade-2.7.3.php:37 Stack trace: #0 /var/www/noteswp.new/wp-content/plugins-backup/dokan-lite/includes/upgrades/dokan-upgrade-2.7.3.php(78): dokan_update_table_structure_273() #1 {main} thrown in /var/www/noteswp.new/wp-content/plugins-backup/dokan-lite/includes/upgrades/dokan-upgrade-2.7.3.php on line 37