Yii2-images doesn't work

I want to use this extension for image uploading purposes. So, following the installation guide, I add this line to my composer.json:

"costa-rico/yii2-images": "dev-master"

Then I run

`composer update`

And get the following error:

  The "https://packagist.org/p/provider-2018-10%24b07aad9d768b35ee521e0ad87333d7aea7c643906063d6bba978e20be79db053.json" file cou
  ld not be downloaded (HTTP/1.1 404 Not Found)

What’s the problem?

It worked for the second time and I have no idea why! It could’ve been a typo, but I just hit that arrow-up key and it worked!