Add Customers from admin addon

[pixelpadre]

It's possible that your server is configured to not allow or include the server variable $_SERVER['DOCUMENT_ROOT']

try replacing this line of code at line 26 of admin/add_customers_backend.php:

$path = $_SERVER['DOCUMENT_ROOT'] . '/' . $files['name']; 

with this:

$path = DIR_FS_ADMIN . '/backups/' . $files['name']; 

This did not work for me. I still get the same error could not move file.