Hello! I need an urgent help solving this error : ODK Validate Errors: >> Something broke the parser

Hello! I need an urgent help solving this error :

ODK Validate Errors: >> Something broke the parser. See above for a hint. org.javarosa.xpath.XPathTypeMismatchException: XPath evaluation: type mismatch converting to string The following files failed validation: ${tmpdebr1sx5} Result: Invalid

I am trying to upload the csv file but it tells me New users can not upload attachments

Welcome to the community, @nunuk! It’s always advised to validate your XLSForm through this online validator to see if there are any syntax issues that is affecting your form upload and deployment.

A quick hint: Try checking your variable tmpdebr1sx5 under both the survey and the choice tab. There could be an issue there.