Oracle XDK Java 9.2.0.6.0 Production

XSQL-011: Error processing XSLT stylesheet: Anuncio-CanguroEnCasaHTML.xsl
https://www.canguroencasa.com/General/global.xsl: XSL-1021: (Error) Error parsing external document: 'sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: validity check failed'.