Warnings in task View and projViewVersions

After upgrade streber to rev 321 I have the following warnings in taskView and projViewVersions. See warnings below:

from taskView

Error 20070506124525 WARNING:    dbdb_item.inc.php : 717 can't read 'getLabel' from object of type 'Task' 
Error 20070506124525        pagestask_view.inc.php :  79 -> DbItem::__get("getLabel")
Error 20070506124525  stdclass_pagehandler.inc.php : 729 -> TaskView()
Error 20070506124525             pagesitem.inc.php :  36 -> PageHandler::show("taskView", [1])
Error 20070506124525  stdclass_pagehandler.inc.php : 729 -> itemView()
Error 20070506124525                     index.php : 206 -> PageHandler::show("itemView")
Error 20070506124525 
Error 20070506124525      Variables in __get():
Error 20070506124525                          this = OBJECT
Error 20070506124525                          name = getLabel
Error 20070506124525    v0.07991, taskView, from 83.16.198.98,  uri:/4723
Error 20070506124525 

Error 20070506124525 WARNING: renderrender_page.inc.php : 494 Cannot modify header information - headers already sent by (output started at /std/errorhandler.inc.php:161)
Error 20070506124525     renderrender_page.inc.php : 494 -> header("Content-type: text/html; chars")
Error 20070506124525     renderrender_page.inc.php : 692 -> PageHtmlStart::__toString()
Error 20070506124525     renderrender_page.inc.php : 680 -> PageHeader::PageHeaderAsHTML()
Error 20070506124525        pagestask_view.inc.php : 198 -> PageHeader::__toString()
Error 20070506124525  stdclass_pagehandler.inc.php : 729 -> TaskView()
Error 20070506124525             pagesitem.inc.php :  36 -> PageHandler::show("taskView", [1])
Error 20070506124525  stdclass_pagehandler.inc.php : 729 -> itemView()
Error 20070506124525                     index.php : 206 -> PageHandler::show("itemView")
Error 20070506124525 
Error 20070506124525      Variables in __toString():
Error 20070506124525                          auth = OBJECT
Error 20070506124525                  theme_config = themes/clean/theme_config.inc.php
Error 20070506124525    v0.07991, taskView, from 83.16.198.98,  uri:/4723
Error 20070506124525 

from projViewVersions

Error 20070506124814 NOTICE: renderrender_block.inc.php : 250 one block-function of 'tasks' should have default-flag
Error 20070506124814    listslist_versions.inc.php : 103 -> PageBlock::getBlockStyleFromCookie()
Error 20070506124814     pagesproject_more.inc.php :1751 -> ListBlock_versions::print_automatic(*Project)
Error 20070506124814  stdclass_pagehandler.inc.php : 729 -> ProjViewVersions()
Error 20070506124814                     index.php : 206 -> PageHandler::show("projViewVersions")
Error 20070506124814 
Error 20070506124814      Variables in getBlockStyleFromCookie():
Error 20070506124814                            PH = OBJECT
Error 20070506124814                     liststyle = NULL
Error 20070506124814    v0.07991, projViewVersions, from 83.16.198.98,  uri:/index.php?go=projViewVersions&prj=4317
Error 20070506124814 

test\sd