Error in form deploying


I am trying to deploy my form but receiving this error.

your form cannot be deployed because it contains errors:

Unexpected KoBoCAT error 400: b’{“detail”:“There has been a problem trying to replace ${} with the XPath to the survey element named ''. There is no survey element with this name.”}’

Please help

Welcome to the community, @mel2022! You could validate your XLSForm through this online validator to check out the syntax errors that are present within your XLSForm.