Form not validating due to XForm Parse error

Support
1

Error: ODK Validate Errors: XForm Parse Error: Encountered a problem with display condition for node [${OTRO_PRND}] at line: (), Bad node: org.javarosa.xpath.parser.ast.ASTNodeAbstractExpr@483bf400 org.javarosa.xform.parse.XFormParseException: Encountered a problem with display condition for node [${OTRO_PRND}] at line: (), Bad node: org.javarosa.xpath.parser.ast.ASTNodeAbstractExpr@483bf400

anyone can help me please

2

It's going to hard to help without a copy of your form. If you can share it publicly, please attach it to this post.

3

https://docs.google.com/spreadsheets/d/1NqaIR1mRYBFf7aAX2dgx-3pDkUPWdp5kjFnxi6vWnAo/edit?usp=sharing

that is my form
thanxs for you help