I am afraid that the restore wasn't successful. Can you install a fresh version of Servicedesk (same version as in your backup) and restore the data.
Refer to the link to Restore the Data
http://www.manageengine.com/products/service-desk/faq-general-modules.html#BackupRestore3
Regards,
Priya K
SDP Support - FAQ
ServiceDesk Plus - Help Desk Software of your Choice
Refer to the link to Restore the Data
http://www.manageengine.com/products/service-desk/faq-general-modules.html#BackupRestore3
Regards,
Priya K
SDP Support - FAQ
ServiceDesk Plus - Help Desk Software of your Choice