Value does not fall within the expected range in Select Item Activity


I’ve different websites(Each website having different filelds like some have FirstName,Lastname,DOB,Dropdown for Country(India,US,UK) for and some have Same FirstName,LastName and Dropdown for Gender(Male,Female)),I need to add the all the websites into one workflow.

Am adding FisrtName,LastName,DOB.

Values are different in Dropdown
How add Dropdown to this workflow.

Does anyone know how to fix that?

Many thanks in advance.
Best regards