Report - Custom File name Variable (Decapricated)

Hi friends

I have created this Report with a custom “name” and used a variable

This image below is my old configuration.

And it still working If I don’t change anything.

I’m trying to replicate the same structure in another workflow, but with no success.

*Using the same configuration, doesn’t work

*This image is: 'I’m trying to config the variable and getting an error.

I think this is a new config to browser the location, where I can write the file name, but not a custom file name with variable.