image-format 'gif;-Services.aspx' is unknown.

java.lang.IllegalArgumentException: image-format 'gif;-Services.aspx' is unknown.
	at com.quartal.imaging.ImageBuilder.toImage(ImageBuilder.java:302)
	at com.quartal.imaging.ImageBuilder.createImage(ImageBuilder.java:181)
	at com.quartal.imaging.ImageBuilderServlet.doGet(ImageBuilderServlet.java:628)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:115)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:92)
	at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:99)
	at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115)
	at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:208)
	at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:268)
	at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:106)
	at com.quartal.quickchart.FrontEndServlet.forwardToImageBuilder(FrontEndServlet.java:257)
	at com.quartal.quickchart.FrontEndServlet.doGet(FrontEndServlet.java:198)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:115)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:92)
	at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:99)
	at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:163)
	at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:208)
	at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:259)
	at com.caucho.server.port.TcpConnection.run(TcpConnection.java:363)
	at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:490)
	at com.caucho.util.ThreadPool.run(ThreadPool.java:423)
	at java.lang.Thread.run(Thread.java:534)