之前禅道是5.2.1的数据库，现在是7.1

无法提交bug，日志显示如下：

15:07:07 ERROR: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'testtask' in 'field list'The sql is: INSERT INTO `zt_bug` SET `product` = '39',`module` = '0',`project` = '44',`openedBuild` = 'trunk',`assignedTo` = 'yangwei',`title` = 'abc',`steps`= '[步骤]\r\n[结果]\r\n[期望]',`task` = '0',`type` = 'codeerror',`severity` = '3',`os` = '',`browser` = '',`mailto` = '',`keywords` = '',`case` = '0',`caseVersion` = '0',`result` = '0',`testtask` = '0',`openedBy` = 'admin',`openedDate` = '2015-05-12 15:0707',`story` = '0',`assignedDate` = '2015-05-12 15:07:07' in /var/www/html/zt/lib/dao/dao.class.php on line 1058, last called by /var/www/html/zt/lib/dao/dao.class.php on line 583 through function sqlError.
 in /var/www/html/zt/framework/router.class.php on line 1551 when visiting /zt/www/index.php?m=bug&f=create&productID=39&extra=moduleID=0
~                                                                                                                                                                                                                                                         

好像是数据有的列不全，能否单独升级数据库呢？应该怎么做呢。。。谢谢