TypeError thrown

get_class(): Argument #1 ($object) must be of type object, string given


Fatal error: Uncaught TypeError: get_class(): Argument #1 ($object) must be of type object, string given in /homepages/46/d26710898/htdocs/wp-content/plugins/qtranslate/qtranslate_core.php:759 Stack trace: #0 /homepages/46/d26710898/htdocs/wp-content/plugins/qtranslate/qtranslate_core.php(754): qtrans_use('en', 'black-studio-ti...', false) #1 /homepages/46/d26710898/htdocs/wp-content/plugins/qtranslate/qtranslate_hooks.php(111): qtrans_use('en', Array, false) #2 /homepages/46/d26710898/htdocs/wp-includes/class-wp-hook.php(305): qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage(Array) #3 /homepages/46/d26710898/htdocs/wp-includes/plugin.php(189): WP_Hook->apply_filters(Array, Array) #4 /homepages/46/d26710898/htdocs/wp-includes/option.php(225): apply_filters('option_active_p...', Array, 'active_plugins') #5 /homepages/46/d26710898/htdocs/wp-content/plugins/nextgen-gallery/nggallery.php(236): get_option('active_plugins') #6 /homepages/46/d26710898/htdocs/wp-includes/class-wp-hook.php(303): C_NextGEN_Bootstrap->fix_loading_order('') #7 /homepages/46/d26710898/htdocs/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array) #8 /homepages/46/d26710898/htdocs/wp-includes/plugin.php(470): WP_Hook->do_action(Array) #9 /homepages/46/d26710898/htdocs/wp-includes/load.php(1097): do_action('shutdown') #10 [internal function]: shutdown_action_hook() #11 {main} thrown in /homepages/46/d26710898/htdocs/wp-content/plugins/qtranslate/qtranslate_core.php on line 759