@Jeferson_Barbosa_Man For you, one error log shows that you haven’t added the firebase core component, you have to add core component in order to use the other respective components.
next To test firebase components test them in compiled app they won’t work in the companion due to the core component.
and you got AAPT 2 error, which could be due to wrong screen naming.
Now @Sribastob if you get error for Moneatization then, Please clear cache data of the builder and then try again.