404: File Not Found (installing invoiceplan v1.4.10)

I’m trying to install invoiceplan v1.4.10 in my subdirectory invoices, what I do is:

1- install invoiceplan v1.4.10 in my subdirectory invoices.

2- edit .htaccess file with:

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /invoices
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule . /index.php [L]

3- I remove index.php from $config['index_page'] = 'index.php'; as explained in wiki https://wiki.invoiceplane.com/en/1.0/getting-started/installation#htaccess

4- after I open http://example.com/invoices/index.php/setup it take me to http://My_SERVER_IP/invoices/setup/language with 404: File Not Found error.

5- I try to keep index.php in $config['index_page'] = 'index.php'; but i get the same error.

6- I’m sure the mod_rewrite enabled on my server.

Please, what should I do know?

Installation Guid in the Wiki:

4.Open index.php and set your URL like instructed in the file.