Fatal error: Out of memory (allocated 18874368 bytes) (tried to allocate 32768 bytes) in C:\Xampp\htdocs\wp-includes\class-wp-theme-json.php on line 2504

Fatal error: Uncaught Error: Call to a member function set() on null in C:\Xampp\htdocs\wp-includes\l10n.php:856 Stack trace: #0 C:\Xampp\htdocs\wp-includes\l10n.php(959): load_textdomain('default', 'C:\\Xampp\\htdocs...', 'en_AU') #1 C:\Xampp\htdocs\wp-includes\class-wp-fatal-error-handler.php(49): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in C:\Xampp\htdocs\wp-includes\l10n.php on line 856