Please help me on this error

Hello, I have been working on this file for a while but it keeps giving errors.
Please someone help me understand this error “Something broke the parser. See above for a hint. Error evaluating field ‘warning_qualify_001’ (${platforms}[1]/warning_qualify_001[1]): The problem was located in Calculate expression for ${warning_qualify_001} XPath evaluation: cannot handle function ‘if’ requires 3 arguments. Only 1 provided. Caused by: org.javarosa.xpath.XPathUnhandledException: The problem was located in Calculate expression for ${warning_qualify_001} XPath evaluation: cannot handle function ‘if’ requires 3 arguments. Only 1 provided. … 10 more The following files failed validation: ${tmp2nuh4yxp} Result: Invalid”

Welcome to the community, @Ritah_Pavin! You could always validate your XLSForm through this online validator to see if there are any syntax issues.

Welcome @Ritah_Pavin,
As the error msg says, you have a syntax error in the

"Calculate expression for ${warning_qualify_001}
… ‘if’ requires 3 arguments. Only 1 provided.

It might be related e.g. to unbalanced brackets.