Permission error with rename()

Hello everyone. I’ve just got an interesting error when creating a function that deletes the original image after uploading. This is the error code I got:

Warning: rename(/storage/content/49/208749/mydomain.com/public_html/wp-content/uploads/sites/25/,/storage/content/49/208749/mydomain.com/public_html/wp-content/uploads/sites/25/2015/09/XperiaZ5RangeBanner-1500x550.jpg): Invalid argument in /storage/content/49/208749/mydomain.com/public_html/wp-content/plugins/mydomain-image-settings/mydomain-image-settings.php on line 27 1069

As you can see I have a multisite which I tried on. Then I tried on my local server and got this:

Warning: rename(C:\xampp\htdocs\mydomain_dev/wp-content/uploads/,C:\xampp\htdocs\mydomain_dev/wp-content/uploads/2015/09/image.jpg): Access is denied. (code: 5) in C:\xampp\htdocs\mydomain_dev\wp-content\plugins\mydomain-image-settings\mydomain-image-settings.php on line 27
140

The function code:

function replace_uploaded_image($image_data) {
// if there is no large image : return
if (!isset($image_data['sizes']['large'])) return $image_data;

// paths to the uploaded image and the large image
$upload_dir = wp_upload_dir();
$uploaded_image_location = $upload_dir['basedir'] . '/' .$image_data['file'];
// $large_image_location = $upload_dir['path'] . '/'.$image_data['sizes']['large']['file']; // ** This only works for new image uploads - fixed for older images below.
$large_image_location = $upload_dir['basedir'] . '/'.$image_data['sizes']['large']['path'];

// delete the uploaded image
unlink($uploaded_image_location);

// rename the large image
rename($large_image_location,$uploaded_image_location);

// update image metadata and return them
$image_data['width'] = $image_data['sizes']['large']['width'];
$image_data['height'] = $image_data['sizes']['large']['height'];
unset($image_data['sizes']['large']);

return $image_data;
}

add_filter('wp_generate_attachment_metadata','replace_uploaded_image');

My current permissions are 755 in wp-content and uploads folder. So what is happening here? Why doesn’t this work? Any ideas?