NoSuchWindowException: Window '[CLASS:IEFrame]'

I am facing issue in attaching file and taking screenshot
Tried lots of ways to do this both actions but not working, Earlier it was not giving me error of switch To IEFrame window

BP Link:

Error: Step name ‘RPA WEB BOT’ has failed. Reason: ‘[urn:uuid:AC8284E8F4293E4B1F1633417845601179] robotics-flow executePlugin exception: [nodeId=22be4b8d686ca95876f0db0f221b9abehttp://] org.webharvest.exception.ScriptException: Config line 433: script block org.openqa.selenium.NoSuchWindowException: Window ‘[CLASS:IEFrame]’ is not found Build info: version: ‘’, revision: ‘1a10eeeced’, time: ‘2018-11-29T10:44:59.891Z’ System info: host: ‘WIN-3VK8OKHIS7N’, ip: ‘’, ‘Windows Server 2012 R2’, os.arch: ‘amd64’, os.version: ‘6.3’, java.version: ‘1.8.0_92’ Driver info: driver.version: unknown Command duration or timeout: 0 milliseconds’

Total: 3

@abrakovich please help me to identify and resolve this issue (also check the taking mail screenshot code Once)