e-colori - Tobias

Thanks again, but it did not help
It was a typing error (here in the forum) the domain is both: ‘wpsmnt_’
I checked every priority from 1-10 no difference?

I just checked if
_e( 'Price', 'wpsmnt_' );
would be translated at this point in the function.
Same issue if I deactive polylang, it works.

It is a mystery for me? Any more ideas?

This sounds like a possibility…
My textdomain is loaded in the

private function __construct() {
add_action( 'plugins_loaded', array( $this, 'load_plugin_textdomain' ), 1, 1);

and

public function load_plugin_textdomain() {

load_plugin_textdomain( 'wpsmnt_', false, dirname( plugin_basename( __FILE__ ) ).'/lang/' );
}

You suggest it should be in a hook?

Sorry you are right.
It is a new plugin not published yet, programmed by myself.

This error array is filled in a function and than

$err_mess = '';
foreach( $error as $err ) {
	$err_mess .= $err . '<br />';
}
$this->message .= '<p class="wpsmnt_error">'.$err_mess.'</p>';

And than echoed in a second function on the frontend?
echo $this->message;

What I do not understand is, if I deactivate polylang it is translated?

Thank you for testing.
Any suggestions how I could solve the problem, if my theme does use and support an author.php file for showing author infos from the DB: users and user_meta: Name, description, nicename etc. ?

Thank you for your fast answer.
It gives me this warning:

Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'pll_author_translation_url' not found or invalid function name in C:\xampp\htdocs\confi\wp-includes\plugin.php on line 199

And it does not do the trick ;-(

OK, I see.
I am not showing all the posts the author has written (loop) on that page.

It shows author infos from the DB: users and user_meta: Name, description, nicename etc.

@vishnudath
It is nearly perfect. You should not miss the: rel=”author” and use the build in author link of wordpress: <?php the_author() ?>
e.g.:

<span class="vcard author"><span class="fn">

by <a href="https://google.com/profiles/1234567890123456789"
rel="author"><?php the_author() ?></a>

</span></span>

This number: “1234567890123456789” should be your google+ profile ID.