Fatal error: Uncaught mysqli_sql_exception: sphinxql: syntax error, unexpected invalid token, expecting CONST_INT or QUOTED_STRING or '-' near '"1") AND user_id IN ("2") AND is_a_tutor = 1 AND MATCH('@commun' in /var/www/acadam/application/libraries/Sphinx_adapter.php:259 Stack trace: #0 /var/www/acadam/application/libraries/Sphinx_adapter.php(259): mysqli->query() #1 /var/www/acadam/application/models/data_sources/my_community_tutors_data_source.php(51): Sphinx_adapter->get() #2 /var/www/acadam/application/models/data_sources/my_community_tutors_data_source.php(80): My_community_tutors_data_source->get_listing() #3 /var/www/acadam/application/helpers/search_helper.php(180): My_community_tutors_data_source->get_count() #4 /var/www/acadam/application/controllers/search.php(50): Paginator->get_page_listing() #5 /var/www/acadam/application/core/MY_Controller.php(451): Search->index() #6 /var/www/acadam/system/core/CodeIgniter.php(305): Acadam_Controller->_remap() #7 /var/www/acadam/public/index.php(228): require_once('...') #8 {main} thrown in /var/www/acadam/application/libraries/Sphinx_adapter.php on line 259