NAV2017 Control Add-In Automated Deployment

Hi to all,

I am still a newbie in developing and deploying add-in. I am trying to understand they way to deploy dll automatically. I tried all the steps here:

https://kauffmann.nl/2014/09/24/nav-2015-automatic-deployment-of-net-assemblies/

I used a small add-in I found online, the Bing map, with the following interface:
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Clik here to view.

Saved, built the ddl, signed and deployed in the add-in folders (both client and server in the development environment, but I tried also to deploy just on server side).
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I registered it in NAV:

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The add-in is "called" in a NAV Page:

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Now, if I run the add-in page on development server, it works well with RTC client and Webclient

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I tried on another server, with NAV2017 installed, without deploying the dll, and the add-in doesn't work with RTC (It works with WebClient)

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The error pop up just if I try to change latitude, because it calls a method "load" in the add-in class (In the development environment it works).

Any idea how to solve this problem? Image may be NSFW.
Clik here to view. Maybe it is something simply but I can't get it.

I hope information is enough.

Thanks in advance.
Davide