HP Service Manager 9.34 - Branding is not working



I've recently installed HP Service Manager 9.34. 
I'm trying to use the "Branding" feature but I'm always getting the following error message:

"Branding is not enabled correctly".


Does anybody knows how to overcome this error?
Is there a specific place to enable the branding feature?

Thanks in advance for your help!

Best Regards,

Filipe Cruz