Hague System Fee Calculator

jakarta.servlet.jsp.JspException: Problem accessing the absolute URL "https://www.wipo.int/feecalc_dm?Lang=E&utm_source=BenchmarkEmail&utm_campaign=Newsletter%5BNo.0007%5D-2022-04-20_%E8%8B%B1%E6%96%87&utm_medium=email". java.io.IOException: Server returned HTTP response code: 504 for URL: https://www.wipo.int/feecalc_dm?Lang=E&utm_source=BenchmarkEmail&utm_campaign=Newsletter%5BNo.0007%5D-2022-04-20_%E8%8B%B1%E6%96%87&utm_medium=email