In order to run WPML All Import, you need to have our WPML All Import plugin installed as well as WP All Import plugin. When you report issues or ask for help, make sure to tell us the versions of everything you are running. This should include:
Problem: Using WP All Import and WPML All Import content is not being connected.
Solution: You need to follow the steps in our documentation that are on the link below.
Also, note that you must set the Unique ID as a single element that will be both within the default language and within the translation. This is essential for the translation and the original contents are turned on.