An Unknown Error was raised that caused by Class Cast Exception.
알 수 없는 오류 java.lang.Exception: class org.w3c.css.properties.css3.Css3Style cannot be cast to class org.w3c.css.properties.svg.SVGBasicStyle (org.w3c.css.properties.css3.Css3Style and org.w3c.css.properties.svg.SVGBasicStyle are in unnamed module of loader org.w3c.jigsaw.servlet.AutoReloadServletLoader @4cd2c9a1)
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