Could you try the following redirects in your netlify.toml and let us know if they work for you?
[[redirects]]
from = "https://cat.jnsst.com.br/*"
to = "https://www.jnsst.com.br/cat"
status = 301
force = true
[[redirects]]
from = "https://cat.jnsst.com.br/*"
to = "https://www.jnsst.com.br/cat"
status = 301
force = true
Let us know if the above redirects work for you or if you have any questions.
[[redirects]]
force = true
from = "https://cat.jnsst.com.br/*"
status = 301
to = "https://www.jnsst.com.br/cat/:splat"
[[redirects]]
from = "/*"
status = 200
to = "/index.html"