Database error @ calendar.php & admincp/index.php

[notrious]

Hi there getting 2 wired erros one @ admincp index page and 2nd on calendar.php.

Searched a lot but no clue so posting here. I have tried disabling plugins and hooks glob.. Forum was on 3.7 plat upgrade to 3.8. Now running on 3.8.4.

Any help would be really appreciated...

Database error in vBulletin 3.8.4:

Invalid SQL:

	SELECT COUNT(*) AS count
	FROM event AS event
	INNER JOIN calendar AS calendar USING (calendarid)
	WHERE event.visible = 0;

MySQL Error   : Unknown column 'calendarid' in 'from clause'
Error Number  : 1054
Request Date  : Saturday, December 5th 2009 @ 09:39:25 PM
Error Date    : Saturday, December 5th 2009 @ 09:39:25 PM
Script        :  (FORUMURL)  /forum/admincp/index.php?do=home
Referrer      :  (FORUMURL)      /forum/admincp/index.php?do=nav
IP Address    : 
Username      : 
Classname     : vB_Database
MySQL Version : 5.0.85-community-log

Database error in vBulletin 3.8.4:

Invalid SQL:

		SELECT event.*,
		user.username, IF(user.displaygroupid = 0, user.usergroupid, user.displaygroupid) AS displaygroupid,
		IF(dateline_to = 0, 1, 0) AS singleday
		, subscribeevent.eventid AS subscribed
		FROM event AS event
		LEFT JOIN user AS user ON (user.userid = event.userid)
		LEFT JOIN subscribeevent AS subscribeevent ON (subscribeevent.eventid = event.eventid AND subscribeevent.userid = 22818)
		WHERE calendarid = 1 AND
			((dateline_to >= 1256990400 AND dateline_from < 1265025600) OR (dateline_to = 0 AND dateline_from >= 1256990400 AND dateline_from <= 1265025600 ))	AND
			visible = 1
		ORDER BY dateline_from;

MySQL Error   : Unknown column 'dateline_to' in 'field list'
Error Number  : 1054
Request Date  : Saturday, December 5th 2009 @ 09:38:55 PM
Error Date    : Saturday, December 5th 2009 @ 09:38:55 PM
Script        :(forum URL) /forum/calendar.php
Referrer     :(forum URL) /forum/index.php
IP Address    : 
Username      :
Classname     : vB_Database
MySQL Version : 5.0.85-community-log