Apache_Solr_HttpTransportException: '400' Status: Bad Request in /var/www/searchAssistant/Apache/Solr/Service.php:338 Stack trace: #0 /var/www/searchAssistant/Apache/Solr/Service.php(1170): Apache_Solr_Service->_sendRawGet('http://172.20.2...') #1 /var/www/searchAssistant/document.php(109): Apache_Solr_Service->search('parent_id:{{ref...', 0, 3200, Array) #2 {main}