"PDOException: SQLSTATE[42S22]: [Microsoft][ODBC Driver 11 for SQL Server][SQL Server]Invalid column name 'css_class'.: UPDATE block SET [css_class]=:db_update_placeholder_0 WHERE ([module] = :db_condition_placeholder_0) AND ([delta] = :db_condition_placeholder_1) ; Array ( ) in block_class_form_submit() (line 99 of .....\sites\all\modules\block_class\block_class.module)."
Adding class to the block using block class module. while adding class to the block throwing pdo exception error coming. Please any one resolve problem.