Fortigate 40C

Hey Guys I currently have a Fortinet 40C that I tried to upgrade from a Version 4.0.0 to a 5.0.0 however is seem to have crashed how do I revert this or continue the upgrade?  Error: 

FortiGate-40C (11:50-04.13.2012) Ver:04000006 Serial number: **************** CPU(00): 525MHz Total RAM: 512MB Initializing boot device... Initializing MAC... nplite#0 Press any key to display configuration menu... ...... Reading boot image... 1080979 bytes. Initializing firewall...

System is starting... Too many entries in all tables of .vpn.ssl.web.portal in vdom root: 1 / vdom-max = 1 Too many entries in all tables of .vpn.ssl.web.portal in vdom root: 1 / vdom-max = 1 The config file may contain errors, Please see details by the command 'diagnose debug config-error-log read' cli 31 die in an exception in line 8: end