php error happened

Technical information
Error type256
Error descriptionTable 'SingleCell.Single_cell_samples' doesn't exist
URLsingle-cell.clst.riken.jp/non_riken_data/Funcational_analysis_list.php?
Error file/var/www/html/non_riken_data/connections/MySQLiConnection.php
Error line125
SQL querySELECT `accession_number`, `Dataset_title`, `matrix`, `search_gene`,(SELECT count(*) FROM (SELECT accession_number FROM `Single_cell_samples` ) `subQuery_cnt` WHERE `subQuery_cnt`.`accession_number`=`Funcational_analysis`.`accession_number`) as `Single_cell_samples_cnt` FROM `Funcational_analysis` ORDER BY 1 ASC

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