Error: fork/exec /home/pablo/.helm/plugins/helm-mirror/bin/mirror: no such file or directory

[fomenta]

I am using ubuntu:
Linux #33~18.04.1-Ubuntu SMP Tue Oct 1 10:20:39 UTC 2019 x86_64 GNU/Linux

I ran:

helm plugin install https://github.com/openSUSE/helm-mirror --version master

Then I tried downloading a package to mirror:

helm mirror "https://kubecost.github.io/cost-analyzer/" "$PWD/tempcharts" --chart-name cost-analyzer --chart-version 1.45.2

And I got back this error:

Error: fork/exec ~/.helm/plugins/helm-mirror/bin/mirror: no such file or directory

Checking folder "~/.helm/plugins/helm-mirror/bin/", I see there's a file "helm-mirror" not "mirror".

If I rename the file manually, the command does not raise any error but I still don't get the package. The only thing downloaded is the index.yaml file.