Systran / CMless Trados Studio app cannot be downloaded

Hello,

I upgraded directly from Trados 2015 to Trados 2019. 

I used the "CMless Trados Studio" app in order to use Systran as a TM on a server. It worked well until recently in Trados 2015, and then suddenly the contact to the server seemed to be stopped. As I wanted to buy Trados 2019, I didn't get deeper into it.

The "CMless Trados Studio" app on the SDL website is fit for Trados 2015 or Trados 2017 but not Trados 2019. 

I contacted a Systran engineer who sent these instructions:  https://community.sdl.com/developers-more/developers/language-developers/w/wiki/3283.how-to-update-plugins-to-studio-2019

It is all far too complicated for me. He didn't reply yet to my question: do you intend to release a new version of the app for Trados 2019 soon?

In the meantime, I tried and tried several times with the instructions above. But it doesn't work and sound like Chinese. From what I understand, I need to install the app (CMless Trados Studio in the app store) for Trados 2015 first, and then upgrade it, following the complicated instructions.

The new problem now is that I cannot even download the "CMless Trados Studio" app. Everytime, I am requested to login again, and the download doesn't work afterwards... 

Can anyone help me with this?

Thanks in advance and best regards,

Pascale Cotton