in plugin subfolder “core” is a file functions.display.php.
There in line 192 is this “About”.
To translate it in German I changed the word “About” to “Über”:
uuml;ber
the whole line:
$html .= '<h4 class="wpautbox-name">'. __('uuml;ber', 'wpautbox') . ' ' . get_the_author_meta( 'display_name', $authorid ) .'</h4>';
This is not a good solution, but the only way, that I’ve found out. When there will be a plugin update, then this change will be lost. Hope the plugin author will change this soon.
Thanks @csigncsign for answering the question 🙂 The translatation is available on the pro version as of the moment. You can use this function to translate without editing the file : https://support.woothemes.com/hc/en-us/articles/203105817-Quickly-Translate-Or-Replace-WordPress-Localized-Site-Text . Thanks!
Cheers,
phpbits