Fatal error: Uncaught Error: Call to private method Magento\CatalogSearch\Model\Search\FilterMapper\CustomAttributeFilter::extractTableAliasFromSelect() from context 'MageCaptain\CatalogSearchExtend\Model\Search\FilterMapper\CustomAttributeFilter' in /EBS/boxify/public_html/app/code/MageCaptain/CatalogSearchExtend/Model/Search/FilterMapper/CustomAttributeFilter.php:19 Stack trace: #0 /EBS/boxify/public_html/vendor/magento/module-catalog-search/Model/Search/FilterMapper/FilterMapper.php(83): MageCaptain\CatalogSearchExtend\Model\Search\FilterMapper\CustomAttributeFilter->apply(Object(Magento\Framework\DB\Select), Object(Magento\Framework\Search\Request\Filter\Term)) #1 /EBS/boxify/public_html/vendor/magento/module-catalog-search/Model/Search/IndexBuilder.php(113): Magento\CatalogSearch\Model\Search\FilterMapper\FilterMapper->applyFilters(Object(Magento\CatalogSearch\Model\Search\SelectContainer\SelectContainer)) #2 /EBS/boxify/public_html/vendor/magento/framework/Search/Adapter/Mysql/Mapper.php(154): Magento\CatalogSearch\ in /EBS/boxify/public_html/app/code/MageCaptain/CatalogSearchExtend/Model/Search/FilterMapper/CustomAttributeFilter.php on line 19