Fatal error: Out of memory (allocated 16777216) (tried to allocate 20480 bytes) in /home/atrshik/public_html/wp-includes/functions.php on line 5449

Fatal error: Uncaught Error: Call to undefined function _canonical_charset() in /home/atrshik/public_html/wp-includes/functions.php:4237 Stack trace: #0 /home/atrshik/public_html/wp-includes/functions.php(3739): _wp_die_process_input('<p>\xDB\x8C\xDA\xA9 \xD8\xAE\xD8\xB7\xD8\xA7\xDB...', '\xD9\x88\xD8\xB1\xD8\xAF\xD9\xBE\xD8\xB1\xD8\xB3 &r...', Array) #1 /home/atrshik/public_html/wp-includes/functions.php(3722): _default_wp_die_handler(Object(WP_Error), '', Array) #2 /home/atrshik/public_html/wp-includes/class-wp-fatal-error-handler.php(239): wp_die(Object(WP_Error), '', Array) #3 /home/atrshik/public_html/wp-includes/class-wp-fatal-error-handler.php(154): WP_Fatal_Error_Handler->display_default_error_template(Array, false) #4 /home/atrshik/public_html/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 /home/atrshik/public_html/wp-includes/functions.php on line 4237