Fatal error: Uncaught Error: Call to undefined function __() in /home/shervin5/public_html/wp-includes/class-wp-taxonomy.php:607 Stack trace: #0 /home/shervin5/public_html/wp-includes/taxonomy.php(677): WP_Taxonomy::get_default_labels() #1 /home/shervin5/public_html/wp-includes/class-wp-taxonomy.php(486): get_taxonomy_labels(Object(WP_Taxonomy)) #2 /home/shervin5/public_html/wp-includes/class-wp-taxonomy.php(290): WP_Taxonomy->set_props('post', Array) #3 /home/shervin5/public_html/wp-includes/taxonomy.php(493): WP_Taxonomy->__construct('category', 'post', Array) #4 /home/shervin5/public_html/wp-includes/taxonomy.php(82): register_taxonomy('category', 'post', Array) #5 /home/shervin5/public_html/wp-settings.php(444): create_initial_taxonomies() #6 /home/shervin5/public_html/wp-config.php(92): require_once('/home/shervin5/...') #7 /home/shervin5/public_html/wp-load.php(50): require_once('/home/shervin5/...') #8 /home/shervin5/public_html/wp-blog-header.php(13): require_once('/home/shervin5/...') #9 /home/shervin5/public_htm in /home/shervin5/public_html/wp-includes/class-wp-taxonomy.php on line 607