Do you have a valid license, if not make sure to activated the demo license to be able to test the annotation features.
For the demo license, your cordova project must have com.radaee.reader as the package name.
licenseType: 2, //0: for standard license, 1: for professional license, 2: for premium license
company: "Radaee", //the company name you entered during license activation
email: "firstname.lastname@example.org", //the email you entered during license activation
key: "LNJFDN-C89QFX-9ZOU9E-OQ31K2-FADG6Z-XEBCAO" //your license activation key
console.log("Success: " + message);
console.log("Failure: " + err);