Backup Exec 2012 does not open

I am having a strange issue after having rebooted my Backup Exec 2012 server. I am not able to open the console and I get the message

'Windows cannot find 'C:\Program Files\Symantec\Backup Exec\BackupExec.exe'. Make sure you typed the name correctly, and then try again.'

I tried running a repair with the installation, however it does not succeed. All the services seems to be running.

Please help!

thanks