[Lynne]

If you view the source code on the error page, you will see this at the bottom:

<!--
Database error in vBulletin 3.7.0:

Invalid SQL:

			INSERT INTO humanverify
				(hash, answer, dateline)
			VALUES
				('98542719067bc358de24a3897aca11ac', 'yNJ9CB', 1217868950);

MySQL Error   : Table './imageave_Masalaboard/humanverify' is marked as crashed and should be repaired
Error Number  : 145
Request Date  : Monday, August 4th 2008 @ 12:55:50 PM
Error Date    : Monday, August 4th 2008 @ 12:55:50 PM
Script        : http://www.newmasalaboard.info/register.php?do=register
Referrer      : http://www.newmasalaboard.info/register.php
IP Address    : xx.xx.xx.xx
Username      : Unregistered
Classname     : vB_Database
MySQL Version : 
-->

It looks like your humanverify table crashed. Go to your Admin CP > Maintenance > Repair & Optimize > select the table and hit Repair and Optimize at the bottom