I am trying convert a image to base 64 using the plugin Base64 provide by the documentation of ionic, when run in my app in the ADB of android, the convertation work perfect, but in a phisycal device the function this.base64.encode() it returns me a white value

ADB

My phone

I am using the plugin File of cordova for get the path of the image and pass to this.base64.file.encode

Any idea?