Shortcodes that generated using Shortcode Generator can be translated using WPML Translation Management plugin. Open this plugin screen from WPML -> Translation Management
You can now filter out WP Reactions Pro translations as shown below:
After you filter out WP Reactions Pro from dropdown, you will see available translations for the plugin. When you generate new shortcode, it will be added to the list automatically and you can see one or more shortcodes here.
Here check shrotcode that you want to translate from list and click the button “Add selected content to translation basket".
Now Shortcode is in translation basket. Click button “Send all items for translation" to make it available for translation. From left WordPress menu open WPML->Translations to see translations that are waiting to be completed.
Click on “Take and translate" to start translate plugin content.
Once You finished with translation, click Finish button and you will be redirected back to translations page.
Now you have completed translating Shortcode of plugin using WPML. You can repeat process for each shortcode.