Fatal error: Out of memory (allocated 2097152) (tried to allocate 28672 bytes) in C:\xampp\htdocs\km2559\wp-includes\functions.php on line 6620

Fatal error: Uncaught Error: Call to undefined function _canonical_charset() in C:\xampp\htdocs\km2559\wp-includes\functions.php:4280 Stack trace: #0 C:\xampp\htdocs\km2559\wp-includes\functions.php(3780): _wp_die_process_input('<p>There has be...', 'WordPress &rsaq...', Array) #1 C:\xampp\htdocs\km2559\wp-includes\functions.php(3763): _default_wp_die_handler(Object(WP_Error), '', Array) #2 C:\xampp\htdocs\km2559\wp-includes\class-wp-fatal-error-handler.php(239): wp_die(Object(WP_Error), '', Array) #3 C:\xampp\htdocs\km2559\wp-includes\class-wp-fatal-error-handler.php(154): WP_Fatal_Error_Handler->display_default_error_template(Array, false) #4 C:\xampp\htdocs\km2559\wp-includes\class-wp-fatal-error-handler.php(58): WP_Fatal_Error_Handler->display_error_template(Array, false) #5 [internal function]: WP_Fatal_Error_Handler->handle() #6 {main} thrown in C:\xampp\htdocs\km2559\wp-includes\functions.php on line 4280