В точку

Uncaught Error: Object of class WP_Error could not be converted to string
in /home/h009405120/marketing-tech.ru/docs/mtwp/wp-content/themes/m-tech/taxonomy-company_case.php on line 93

Call stack:

1. include()
   wp-includes/template-loader.php:106
2. require_once('/home/h009405120/mar.../template-loader.php')
   wp-blog-header.php:19
3. require('/home/h009405120/mar...p/wp-blog-header.php')
   /home/h009405120/marketing-tech.ru/docs/index.php:17