gianlucap

I’ve the same problem
Thanks
Gianluca

Edit the file C:\xampp\htdocs\Hjemsted\wp-content\plugins\wordpress-seo\inc\wpseo-non-ajax-functions.php

Line 640:
original line
return WPSEO_Utils::translate_score();

try to change in:
return WPSEO_Utils::translate_score($val, $css_value = true);