Unable to find the element

Exception in thread “main” org.openqa.selenium.WebDriverException: An error occurred while executing user supplied JavaScript. (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 3.56 seconds
Build info: version: ‘2.47.1’, revision: ‘unknown’, time: ‘2015-07-30 11:02:44’
System info: host: ‘ArgusXamarin.local’, ip: ‘10.18.24.107’, os.name: ‘Mac OS X’, os.arch: ‘x86_64’, os.version: ‘10.10.5’, java.version: ‘1.7.0_71’
Session ID: 3562a437-9e27-4cca-a5a3-3c2f96c53759
Driver info: io.appium.java_client.android.AndroidDriver
Capabilities [{platform=MAC, databaseEnabled=false, javascriptEnabled=true, browserName=iOS, webStorageEnabled=false, networkConnectionEnabled=false, desired={}, locationContextEnabled=false, warnings={}, takesScreenshot=true}]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:206)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:158)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:595)
at io.appium.java_client.DefaultGenericMobileDriver.execute(DefaultGenericMobileDriver.java:42)
at io.appium.java_client.AppiumDriver.execute(AppiumDriver.java:1)
at io.appium.java_client.android.AndroidDriver.execute(AndroidDriver.java:1)
at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:273)
at io.appium.java_client.DefaultGenericMobileElement.execute(DefaultGenericMobileElement.java:44)
at io.appium.java_client.MobileElement.execute(MobileElement.java:1)
at io.appium.java_client.android.AndroidElement.execute(AndroidElement.java:1)
at org.openqa.selenium.remote.RemoteWebElement.sendKeys(RemoteWebElement.java:94)
at UnifiedFamework.Android_iOS.Amazon.csvReader(Amazon.java:84)
at UnifiedFamework.Android_iOS.Amazon.main(Amazon.java:94)