No se puede completar la operación debido a un error desconocido [!Now]

Hi @Abril31957899miwa,

The error message you're encountering, "The operation cannot be completed due to an unknown error," sometimes occurs when exporting large PNG files.

In addition to Monika & CarlosCanto suggestion, try reducing the resolution to 72 ppi and see if that helps.

If none of these solutions work, and you believe it's not related to the file size, it might be helpful to share the file and export settings screenshot with us for further investigation.

Kindly update the discussion if you still need assistance with it. We'd be happy to help.

Thanks,
Anshul Saini

No se cual sea la causa del error pero is estas usando Export for Screens, trata usando las otras dos opciones para probar si esas funcionan

- File->Export->Export As...

- File->Export->Save For Web (Legacy)...

With which settings are you exporting. That looks kind of huge and considering resolution might just give you a lrage file that Illustrator cannot handle. You could try and place that AI file in Photoshop, then export from there. Or maybe you do not need that resolution anyway.