Forum Registration Issue - Please Help

[Ryan Sitzmann]

I recently converted over my forum (forum.idpguru.com) to a custom subdomain and had nabble enable HTTPS. The forum itself is working as expected and is now encrypted; however, any time someone registers for a new account they get the following error message.

"Oops... An error has occurred
Please contact Nabble Support and explain what you did to cause this error. Your feedback is very important to us.
More Details
Error 500
url=http://forum.idpguru.com/template/NamlServlet.jtp?macro=start_registration_page&g-recaptcha-response=03AGdBq27HbmO-NzkcE1KrQd9TKAJFzDqPO1LEBui0HbPXTpMOcOcxbpKmnjj0qWpKCe2fhi9NMnfVGv2EGRc8UhemN2UQ9VUdavEWCeAZWhSfvRzIdUwC0dzxEkdxsTxaN29O54Ts220X4U6sQmG6aDu_mBujj31QksLlPrFkxpKbJfG1-OMFWN8ezZ5f_hjD4LdYf5NWrCFonxnlaNHzMo-qh73EB643h3jANaLmeeaTmYNSudo-SUGehdYOt4zzOnG-FMtMEqbKfKFIurs737qxWByqbEsffHxHs7KbI2UEoVz0pNpbweqFWN4hTzAmSI4UIaed6f8_eEkOrQfCQIwXOAVM9qGgPXMw88BU0vLscvK0dNaYUyB0GwyoxnuGg0C75ar0msLvIb2HzngtzuDs1RcQwJN6654EeQ-RmKB_r3eg3aXtGhgFzmShpofFiEYfYNOLZ-Cp&start_registration_page=&password=test12345&user_name=test12345&password2=test12345&nextUrl=/&accept_terms=true&email=[e-mail]  method=POST user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.107 Safari/537.36 referer=https://forum.idpguru.com/template/NamlServlet.jtp?macro=start_registration_page&nextUrl=%2F remote=162.158.74.252
Message: invalid host

RequestURI: /template/NamlServlet.jtp

Server: s1.nabble.com

Caused by:
nabble.view.lib.JtpContextServlet$JtpRuntimeException: url=http://forum.idpguru.com/template/NamlServlet.jtp?macro=start_registration_page&g-recaptcha-response=03AGdBq27HbmO-NzkcE1KrQd9TKAJFzDqPO1LEBui0HbPXTpMOcOcxbpKmnjj0qWpKCe2fhi9NMnfVGv2EGRc8UhemN2UQ9VUdavEWCeAZWhSfvRzIdUwC0dzxEkdxsTxaN29O54Ts220X4U6sQmG6aDu_mBujj31QksLlPrFkxpKbJfG1-OMFWN8ezZ5f_hjD4LdYf5NWrCFonxnlaNHzMo-qh73EB643h3jANaLmeeaTmYNSudo-SUGehdYOt4zzOnG-FMtMEqbKfKFIurs737qxWByqbEsffHxHs7KbI2UEoVz0pNpbweqFWN4hTzAmSI4UIaed6f8_eEkOrQfCQIwXOAVM9qGgPXMw88BU0vLscvK0dNaYUyB0GwyoxnuGg0C75ar0msLvIb2HzngtzuDs1RcQwJN6654EeQ-RmKB_r3eg3aXtGhgFzmShpofFiEYfYNOLZ-Cp&start_registration_page=&password=test12345&user_name=test12345&password2=test12345&nextUrl=/&accept_terms=true&email=[e-mail]  method=POST user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.107 Safari/537.36 referer=https://forum.idpguru.com/template/NamlServlet.jtp?macro=start_registration_page&nextUrl=%2F remote=162.158.74.252
        at nabble.view.lib.JtpContextServlet.handleException(JtpContextServlet.java:542)
        at nabble.view.lib.JtpContextServlet.service2(JtpContextServlet.java:442)
        at nabble.view.lib.JtpContextServlet.service(JtpContextServlet.java:311)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:565)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1360)
        at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:77)
        at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:144)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at cachingfilter.CachingFilter.doFilter(CachingFilter.java:128)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at fschmidt.util.servlet.BadBotFilter.doFilter(BadBotFilter.java:74)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at fschmidt.util.servlet.ConnectionLimitFilter.doFilter(ConnectionLimitFilter.java:94)
        at nabble.view.lib.NabbleConnectionLimitFilter.doFilter(NabbleConnectionLimitFilter.java:26)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at nabble.view.lib.NabbleErrorFilter.doFilter(NabbleErrorFilter.java:21)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:477)
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1031)
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:965)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
        at org.eclipse.jetty.server.Server.handle(Server.java:349)
        at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:449)
        at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:925)
        at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:857)
        at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
        at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:76)
        at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:609)
        at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:45)
        at nabble.model.Executors$1$1.run(Executors.java:27)
        at fschmidt.util.executor.ThreadTimer$1.run(ThreadTimer.java:18)
        at fschmidt.util.executor.AbstractThreadPool$1.run(AbstractThreadPool.java:29)
        at java.lang.Thread.run(Thread.java:748)
Caused by: nabble.naml.compiler.TemplateRuntimeException: invalid host
        in check_captcha(nabble:register.naml:57) - <n.check_captcha/> - public void nabble.view.web.template.ServletNamespace.check_captcha(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.Interpreter) throws nabble.model.ModelException$InvalidRecaptcha,java.io.IOException
        in catch_exception(nabble:register.naml:55) - <n.catch_exception. id="save-block"> - public void nabble.naml.namespaces.BasicNamespace.catch_exception(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.Interpreter)
        in process_registration(nabble:register.naml:3) - <then.process_registration/>
        in if(nabble:register.naml:2) - <n.if.is_submitted_form> - public static void nabble.naml.namespaces.BasicNamespace._if(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.Interpreter)
        in comment(nabble:utilities.naml:50) - <n.comment.>
        in page_start(responsive:responsive.naml:7) - <n.page_start/>
        in current_permission_version(nabble:permissions.naml:6) - <n.current_permission_version/>
        in (nabble:register.naml:1) - <macro name="start_registration_page" requires="servlet">
        at nabble.naml.compiler.Compiler.interpFix(Compiler.java:2007)
        at nabble.naml.compiler.Compiler$Block.run(Compiler.java:1636)
        at nabble.naml.compiler.Compiler$Chunks.run(Compiler.java:1121)
        at nabble.naml.compiler.BlockWrapper.printTo(BlockWrapper.java:68)
        at nabble.naml.compiler.TemplatePrintWriter.print(TemplatePrintWriter.java:22)
        at nabble.naml.namespaces.BasicNamespace.catch_exception(BasicNamespace.java:599)
        at sun.reflect.GeneratedMethodAccessor72.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at nabble.naml.compiler.JavaCall.invoke(JavaCall.java:26)
        at nabble.naml.compiler.Compiler$Block.invoke(Compiler.java:1557)
        at nabble.naml.compiler.Compiler$Block.run(Compiler.java:1631)
        at nabble.naml.compiler.BlockWrapper.printTo(BlockWrapper.java:68)
        at nabble.naml.compiler.TemplatePrintWriter.print(TemplatePrintWriter.java:22)
        at nabble.naml.namespaces.BasicNamespace._if(BasicNamespace.java:140)
        at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at nabble.naml.compiler.JavaCall.invoke(JavaCall.java:26)
        at nabble.naml.compiler.Compiler$Block.invoke(Compiler.java:1557)
        at nabble.naml.compiler.Compiler$Block.run(Compiler.java:1631)
        at nabble.naml.compiler.Compiler$Chunks.run(Compiler.java:1121)
        at nabble.naml.compiler.Template.run(Template.java:61)
        at nabble.naml.compiler.Template.run(Template.java:33)
        at nabble.modules.ModuleManager.run(ModuleManager.java:268)
        at nabble.view.web.template.NamlServlet.service(NamlServlet.java:167)
        at nabble.view.web.template.NamlServlet.service(NamlServlet.java:135)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at nabble.view.lib.JtpContextServlet.service2(JtpContextServlet.java:440)
        ... 38 more
Caused by: java.lang.RuntimeException: invalid host
        at nabble.view.lib.Recaptcha.check(Recaptcha.java:53)
        at nabble.view.web.template.ServletNamespace.check_captcha(ServletNamespace.java:307)
        at sun.reflect.GeneratedMethodAccessor431.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at nabble.naml.compiler.JavaCall.invoke(JavaCall.java:26)
        at nabble.naml.compiler.Compiler$Block.invoke(Compiler.java:1557)
        at nabble.naml.compiler.Compiler$Block.run(Compiler.java:1625)
        ... 65 more
URL = http://forum.idpguru.com/template/NamlServlet.jtp?start_registration_page"


Can anyone help me rectify this issue?

Happy to provide any additional information that may be needed to troubleshoot/correct.

Thanks,
Ryan