Uncaught Error: Call to undefined function pll_current_language()
in /var/www/html/wordpress/wp-content/themes/Colypro/global-cats.php on line 2

Call stack:

1. require()
   wp-includes/template.php:812
2. load_template()
   wp-includes/template.php:745
3. locate_template()
   wp-includes/general-template.php:206
4. get_template_part()
   wp-content/themes/Colypro/category.php:17
5. include('/var/www/html/wordpr...Colypro/category.php')
   wp-includes/template-loader.php:106
6. require_once('/var/www/html/wordpr.../template-loader.php')
   wp-blog-header.php:19
7. require('/var/www/html/wordpress/wp-blog-header.php')
   index.php:2