magic keyboard layout not available

Scott Graham1 wrote:

the keyboard layout is wrong and I cannot find the correct layout in Settings.

If you tell us what language keyboard you are using and give examples of the wrong characters being produced, I ca probably tell you what input source you need to have active so that things match.

Write in another language on Mac - Apple Support

Your correct input source should be Portuguese. Instead you probably have Brazilian. So in the input source list add Portuguese if necessary and remove Brazilian.