Fatal error: Cannot redeclare get_page_by_title() (previously declared in E:\WEB\llarcat\wp-includes\post.php:5778) in E:\WEB\llarcat\wp-includes\deprecated.php on line 4593

Fatal error: Uncaught Error: Call to a member function set() on null in E:\WEB\llarcat\wp-includes\l10n.php:784 Stack trace: #0 E:\WEB\llarcat\wp-includes\l10n.php(872): load_textdomain('default', 'E:\\WEB\\llarcat/...', 'es_ES') #1 E:\WEB\llarcat\wp-includes\class-wp-fatal-error-handler.php(47): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in E:\WEB\llarcat\wp-includes\l10n.php on line 784