Astaen

If anyone is still having this issue, here’s how I fixed it.

It’s a bit dirty but it works (sorry for my clumsy english)

The issue comes from OptionTree, which returns an array for every option that was registered through a checkbox. So the “Open in a new tab” option breaks everything.
Thing is, OptionTree saves this option as an array containing either “_blank” or nothing, and when Polylang tries to translate an array … well … it doesn’t.

So go into your theme folder, then open functions/theme-options.php and replace this bit :

array(
					'id'		=> 'social-target',
					'label'		=> 'Link Options',
					'desc'		=> '',
					'std'		=> '',
					'type'		=> 'checkbox',
					'choices'	=> array(
						array(
							'value' => '_blank',
							'label' => 'Open in new window'
						)
					)
)

… with this :

array(
					'id'		=> 'social-target',
					'label'		=> 'Link Options',
					'desc'		=> 'Type "_blank" to open in a new window, leave empty for default behavior.',
					'std'		=> '_blank',
					'type'		=> 'text',
					'choices'	=> array()
)

What this does is it replaces the checkbox for the “Link Options” section (in theme options) with a text input.
All you have to do now is type “_blank” manually for every social link that you want opened in a new tab, like this https://i.imgur.com/XnABqiE.png

Then save again.

Hopefully this helps.