When trying to download the extras, unfortunately I received this message.
and here is the provider.
https://rest.modx.com/extras/
The official MODX transport provider for 3rd party components.
Does the issue persist?
It could be that there was just a temporary problem with the server, that causes this error to show up.
Personally I don’t get any errors, when I test it at the present time.
Are there any related error messages in the MODX error log?
i got that message after installing Modx