Excuse me for the late reply, my project was paused in the vacation holidays. i have found this from system error logs which is dated today after the first upgrade triel.DB Error #1054 Unknown column 'key' in 'field list'---- Backtrace ----#0 C:\wamp\www\osticket_1.6.0\include\mysqli.php(177): osTicket->logDBError('DB Error #1054', '[SELECT id, `ke...')#1 C:\wamp\www\osticket_1.6.0\include\class.config.php(46): db_query('SELECT id, `key...')#2 C:\wamp\www\osticket_1.6.0\include\class.staff.php(70): Config->Config('staff.71139')#3 C:\wamp\www\osticket_1.6.0\include\class.staff.php(39): Staff->load('Deva')#4 C:\wamp\www\osticket_1.6.0\include\class.usersession.php(165): Staff->Staff('Deva')#5 C:\wamp\www\osticket_1.6.0\include\class.auth.php(513): StaffSession->__construct('Deva')#6 C:\wamp\www\osticket_1.6.0\include\class.auth.php(487): StaffAuthenticationBackend->validate('Deva')#7 C:\wamp\www\osticket_1.6.0\scp\staff.inc.php(59): StaffAuthenticationBackend:()#8 C:\wamp\www\osticket_1.6.0\scp\admin.inc.php(16): require('C:\\wamp\\www\\ost...')#9 C:\wamp\www\osticket_1.6.0\scp\logs.php(16): require('C:\\wamp\\www\\ost...')#10 {main}
Log Date: Tue, 20 Jan 2015 15 IP Address: :