Error in importing form

when i am creating a form and trying to import it in my phone through odk collect then an error popup is showing. i don't know what to do.i am uploading the screenshots. please help. i am

Hi,

Convert from using this link and test the form using Enketo form preview feature before uploading the form to Aggregate. Looks like some calculation error. Unfortunately, its hard to identify the issue with this error message.

Thanks