Fatal error: Uncaught Error: Class 'WP_Tax_Query' not found in C:\inetpub\wwwroot\wp-includes\class-wp-query.php:1276
Stack trace:
#0 C:\inetpub\wwwroot\wp-includes\class-wp-query.php(889): WP_Query->parse_tax_query(Array)
#1 C:\inetpub\wwwroot\wp-includes\class-wp-query.php(1670): WP_Query->parse_query()
#2 C:\inetpub\wwwroot\wp-includes\class-wp-query.php(3248): WP_Query->get_posts()
#3 C:\inetpub\wwwroot\wp-includes\class-wp.php(617): WP_Query->query(Array)
#4 C:\inetpub\wwwroot\wp-includes\class-wp.php(735): WP->query_posts()
#5 C:\inetpub\wwwroot\wp-includes\functions.php(955): WP->main('')
#6 C:\inetpub\wwwroot\wp-blog-header.php(16): wp()
#7 C:\inetpub\wwwroot\index.php(17): require('C:\\inetpub\\wwwr...')
#8 {main}
thrown in C:\inetpub\wwwroot\wp-includes\class-wp-query.php on line 1276