java.lang.IllegalArgumentException: No implementation of method: :on-close of protocol: #'org.httpkit.server/Channel found for class: nil
                  core_deftype.clj:583 clojure.core/-cache-protocol-fn
                  core_deftype.clj:575 clojure.core/-cache-protocol-fn
                         server.clj:63 org.httpkit.server/eval24140[fn]
                       http_kit.clj:25 taoensso.sente.server-adapters.http-kit/taoensso.sente.server-adapters.http-kit.HttpKitServerChanAdapter
                        sente.cljc:580 taoensso.sente$make_channel_socket_server_BANG_$fn__23655.invoke
                          core.clj:152 nonforum-kula.core/fn
                          core.clj:152 nonforum-kula.core/fn
                          core.clj:135 compojure.core/make-route[fn]
                          core.clj:122 compojure.core/wrap-route-middleware[fn]
                          core.clj:126 compojure.core/wrap-route-info[fn]
                           core.clj:45 compojure.core/if-route[fn]
                           core.clj:27 compojure.core/if-method[fn]
                          core.clj:151 compojure.core/routing[fn]
                         core.clj:2674 clojure.core/some
                         core.clj:2665 clojure.core/some
                          core.clj:151 compojure.core/routing
                          core.clj:148 compojure.core/routing
                       RestFn.java:139 clojure.lang.RestFn.applyTo
                          core.clj:659 clojure.core/apply
                          core.clj:652 clojure.core/apply
                          core.clj:156 compojure.core/routes[fn]
                          core.clj:173 nonforum-kula.core/parse-edn-body[fn]
                 keyword_params.clj:35 ring.middleware.keyword-params/wrap-keyword-params[fn]
                         params.clj:64 ring.middleware.params/wrap-params[fn]
                          Var.java:379 clojure.lang.Var.invoke
                         reload.clj:38 ring.middleware.reload/wrap-reload[fn]
                     stacktrace.clj:23 ring.middleware.stacktrace/wrap-stacktrace-log[fn]
                     stacktrace.clj:86 ring.middleware.stacktrace/wrap-stacktrace-web[fn]
                          jetty.clj:24 ring.adapter.jetty/proxy-handler[fn]
                      (Unknown Source) ring.adapter.jetty.proxy$org.eclipse.jetty.server.handler.AbstractHandler$ff19274a.handle
                HandlerWrapper.java:97 org.eclipse.jetty.server.handler.HandlerWrapper.handle
                       Server.java:497 org.eclipse.jetty.server.Server.handle
                  HttpChannel.java:310 org.eclipse.jetty.server.HttpChannel.handle
               HttpConnection.java:257 org.eclipse.jetty.server.HttpConnection.onFillable
           AbstractConnection.java:540 org.eclipse.jetty.io.AbstractConnection$2.run
             QueuedThreadPool.java:635 org.eclipse.jetty.util.thread.QueuedThreadPool.runJob
             QueuedThreadPool.java:555 org.eclipse.jetty.util.thread.QueuedThreadPool$3.run