urgent wordpress help needed

my wordpress blogs giving me error

WordPress database error: [User 'U1323844' has exceeded the 'max_questions' resource (current value: 100000)]
SELECT wp_posts.* FROM wp_posts WHERE 1=1 AND YEAR(post_date)='2007' AND MONTH(post_date)='10' AND DAYOFMONTH(post_date)='2' AND post_name = 'reliance-power-ipo-allotment' AND (post_type = 'post') ORDER BY post_date DESC

WordPress database error: [User 'U1323844' has exceeded the 'max_questions' resource (current value: 100000)]
SELECT post_id FROM wp_postmeta, wp_posts WHERE ID = post_id AND meta_key = '_wp_old_slug' AND meta_value='reliance-power-ipo-allotment' AND YEAR(post_date) = '2007' AND MONTH(post_date) = '10' AND DAYOFMONTH(post_date) = '2'

WordPress database error: [User 'U1323844' has exceeded the 'max_questions' resource (current value: 100000)]
SELECT DISTINCT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as posts FROM wp_posts WHERE post_type = 'post' AND post_status = 'publish' GROUP BY YEAR(post_date), MONTH(post_date) ORDER BY post_date DESC

Code (markup):

What can be the reason ?
Please help, as site is live and i need to fix it asap.
my url is http://birlaa.com/

 

have you recently installed any plugins

 

nope, its just having default plugins,

 

ok sending you a pm about this

 

Create and add a new user to your wordpress database. This will solve the problem in all probability.

Source : Wordpress support forum

 

I have read the thread and will do the changes.
Is it temporary error?
Is it due to too many users online at particular time. And will work fine after some time?