orlovskyy on "Polylang"

Hi guys, sorry for my bad english....i am new in wordpress...so i installed a theme which name is "onetone", i think its responsive theme and this theme has 7 section contect so i dont have a page or article, my text, plugins and widgets are all on that theme. you can see it at "chicosantoamaro.pt" i installed a polylang plugin and create an .xml file in the /wp-content/polylang. the .xml looks like this "<wpml-config>
<admin-texts>
<key name="onetone">
<key name="menu_title_0"/>
<key name="menu_title_1"/>
<key name="menu_title_2"/>
<key name="menu_title_3"/>
<key name="menu_title_4"/>
<key name="menu_title_5"/>
<key name="menu_title_6"/>
<key name="section_background_0"/>
<key name="section_background_1"/>
<key name="section_background_2"/>
<key name="section_background_3"/>
<key name="section_background_4"/>
<key name="section_background_5"/>
<key name="section_background_6"/>
<key name="section_background_video_0"/>
<key name="section_background_video_1"/>
<key name="section_background_video_2"/>
<key name="section_background_video_3"/>
<key name="section_background_video_4"/>
<key name="section_background_video_5"/>
<key name="section_background_video_6"/>
<key name="section_css_class_0"/>
<key name="section_css_class_1"/>
<key name="section_css_class_2"/>
<key name="section_css_class_3"/>
<key name="section_css_class_4"/>
<key name="section_css_class_5"/>
<key name="section_css_class_6"/>
<key name="section_content_0"/>
<key name="section_content_1"/>
<key name="section_content_2"/>
<key name="section_content_3"/>
<key name="section_content_4"/>
<key name="section_content_5"/>
<key name="section_content_6"/>
<key name="menu_slug_0"/>
<key name="menu_slug_1"/>
<key name="menu_slug_2"/>
<key name="menu_slug_3"/>
<key name="menu_slug_4"/>
<key name="menu_slug_5"/>
<key name="menu_slug_6"/>
</key>
</admin-texts>
</wpml-config>"
in the admin area i can translate that sections but in the frontend site the language is the same, so its no change the language when for example i go to "chicosantoamaro.pt/?lang=es"