Warning: include(../app/_parts/_header.php): failed to open stream: No such file or directory in /work/web/index.php on line 5

Warning: include(): Failed opening '../app/_parts/_header.php' for inclusion (include_path='.:/usr/local/lib/php') in /work/web/index.php on line 5
Orange Pink Gold Send [reset]

Warning: include(../app/_parts/_footer.php): failed to open stream: No such file or directory in /work/web/index.php on line 19

Warning: include(): Failed opening '../app/_parts/_footer.php' for inclusion (include_path='.:/usr/local/lib/php') in /work/web/index.php on line 19

このような表示になります。
宜しくお願い致します。