No bless setting for a primary boot setting was found

Hello! I am OS Sierra on my PC following Nireah guide here -> https://www.hackintosh.computer/868/hackintosh-sierra-zone-aka-niresh-sierra-guide/

However, I am getting this error after I select the drive I want to install the system on and press "Continue" it shows the error "No bless setting for a primary boot setting was found" almost immediately. Have anyone faced the same problem before and if yes have you found a way how to solve it?

Thank you in advance!