Fatal error: Uncaught PDOException: SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'ansaryan_newerfan.book.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by in /home/ansaryan/public_html/system/libs/class/Pixie/QueryBuilder/QueryBuilderHandler.php:199 Stack trace: #0 /home/ansaryan/public_html/system/libs/class/Pixie/QueryBuilder/QueryBuilderHandler.php(199): PDOStatement->execute(Array) #1 [internal function]: Pixie\QueryBuilder\QueryBuilderHandler->query('select * from b...') #2 /home/ansaryan/public_html/system/libs/class/Pixie/AliasFacade.php(65): call_user_func_array(Array, Array) #3 /home/ansaryan/public_html/system/modules/book/boot.php(441): Pixie\AliasFacade::__callStatic('query', Array) #4 /home/ansaryan/public_html/system/libs/class/class.ep.php(339): book_boot->booklist() #5 /home/ansaryan/public_html/system/libs/class/class.ep.php(268): Ep in /home/ansaryan/public_html/system/libs/class/Pixie/QueryBuilder/QueryBuilderHandler.php on line 199