This thread is resolved. Here is a description of the problem and solution.
Problem: WPML Media is enabled but not effective
Solution: That means you installed and activated WPML Media translation but you did not activate the main WPML plugin which is 'WPML Multilingual CMS' : https://wpml.org/account/downloads/
In order to work any of the WPML plugins, the main WPML plugin is required. Just install 'WPML Multilingual CMS' and activate it then it will be fine.
This is the technical support forum for WPML - the multilingual WordPress plugin.
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