Thanks for posting here in the Community.
Just a heads up that we support English in the Roku Community and translate to respond to an unsupported language to understand the issue.
Regarding your inquiry, please be advised that the Roku skill for Alexa is only supported in Canada, Ireland, Mexico, the United Kingdom, and the United States. Thanks for your interest and we hope to expand this feature to other regions soon. Feel free to keep an eye on our blog at blog.roku.com for any future announcements or updates.
All the best,
Roku Forum Moderator