Hey @José Silva - this could be related to some updates we made involving SVG exports.
Would you mind sharing the file you showed in the screenshot? If you could share edit access to the file (or a copy of it) with support-share@figma.com, our engineers will review it.
Can you also let us know how you’re viewing the SVG, and how the error message gets triggered (ex: you are using only the desktop app when this comes up, but when using Figma on the web, it’s fine)? If you could also include a screen recording, that’s super helpful as well.
If/Once you are able to do that, can you PM me and let me know the file name and team that the file lives in? I’ll get that looked at as soon as possible.