Unexpected Error While logging in

I just did a fresh setup on "WebIssues 1.1.5". I am able to login with admin login/password but when i try to login with another regular user, I am getting following error. I created this regular user with admin console.

Unexpected Error
An unexpected error occured while processing the request.

Event Logs:
Unhandled System_Db_Exception: Prepared statement needs to be re-prepared in /home/mywebtest/public_html/websites/webissues/system/db/mysqli/engine.inc.php on line 287
Stack trace:
#0 /home/mywebtest/public_html/websites/webissues/system/db/mysqli/engine.inc.php(129): System_Db_Mysqli_Engine->handleError(Object(mysqli_stmt))
#1 /home/mywebtest/public_html/websites/webissues/system/db/mysqli/engine.inc.php(90): System_Db_Mysqli_Engine->executeStatement('SELECT COUNT(*)...', Array)
#2 /home/mywebtest/public_html/websites/webissues/system/db/connection.inc.php(256): System_Db_Mysqli_Engine->query('SELECT COUNT(*)...', Array)
#3 /home/mywebtest/public_html/websites/webissues/system/db/connection.inc.php(356): System_Db_Connection->queryArgs('SELECT COUNT(*)...', Array)
#4 /home/mywebtest/public_html/websites/webissues/system/db/connection.inc.php(343): System_Db_Connection->queryScalarArgs('SELECT COUNT(*)...', Array)
#5 /home/mywebtest/public_html/websites/webissues/system/api/projectmanager.inc.php(683): System_Db_Connection->queryScalar('SELECT COUNT(*)...', 2, 2)
#6 /home/mywebtest/public_html/websites/webissues/client/projectstree.inc.php(66): System_Api_ProjectManager->getProjectsCount()
#7 /home/mywebtest/public_html/websites/webissues/system/web/component.inc.php(100): Client_ProjectsTree->execute()
#8 /home/mywebtest/public_html/websites/webissues/system/web/view.inc.php(247): System_Web_Component->run()
#9 /home/mywebtest/public_html/websites/webissues/client/index.html.php(22): System_Web_View->insertComponent('Client_Projects...')
#10 /home/mywebtest/public_html/websites/webissues/system/web/view.inc.php(284): include('/home/mywebtest/...')
#11 /home/mywebtest/public_html/websites/webissues/system/web/view.inc.php(217): System_Web_View->executeTemplate()
#12 /home/mywebtest/public_html/websites/webissues/system/web/component.inc.php(102): System_Web_View->render()
#13 /home/mywebtest/public_html/websites/webissues/system/web/application.inc.php(77): System_Web_Component->run()
#14 /home/mywebtest/public_html/websites/webissues/system/core/application.inc.php(210): System_Web_Application->execute()
#15 /home/mywebtest/public_html/websites/webissues/system/bootstrap.inc.php(130): System_Core_Application->run()
#16 /home/mywebtest/public_html/websites/webissues/client/index.php(61): System_Bootstrap::run('Common_Applicat...', 'Client_Index')

Any help will be useful.