Hello,

Please upload all the files and try again.

For 404 error, please make sure that you have uploaded the `.htaccess` and that your `mod_rewrite` is enabled and configured to use `.htaccess` from site directory.

You can create the `.htaccess` file in the folder where you uploaded the files with following contents

```
DirectoryIndex index.php index.html

<IfModule mod_rewrite.c>

RewriteEngine On
# RewriteBase /invoice/
RewriteCond $1 !^(index\.php|assets|install|update)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

# For godady Shared Hosting Server uncomment the line below
# RewriteRule ^(.*)$ index.php?/$1 [L]

# Please comment this if you have uncommented the above
RewriteRule ^(.*)$ index.php/$1 [NC,L,QSA]

</IfModule>

```

Thank you