Problem with communication between nginx-clojure handler and non nginx-clojure handler

When I try to post request from nginx-clojure handler to another location (which is't contains nginx-clojure handler) at the same server instance, I have a problem - when error in external handler occured the process is die, and my nginx-clojure handler not responding anymore to initial client.
I'm using Apache Http Client to connect another Nginx location which contains Naxsi handler.
Before reloading nginx I see follow message in error log:

2016-11-25 08:11:20[debug][3721][main]onTextMessage fetchStringValidPart : 0, txt=Select AN ...
2016-11-25 08:11:20[debug][3721][main]@BodyFilter:invoke: event get text
2016-11-25 08:11:20[debug][3721][main]@BodyFilter:sec check result
2016-11-25 08:11:21[debug][3721][main]@doExternalBodyFilter: Try to send post request

After that, I'm reloading nginx and see new messages:

2016-11-25 08:12:02[debug][3794][main]@JsonValidator:processRulesFile process rule : location =/service/json;request method=put;schema=/home/osboxes/controller/common/js/put_json.json
2016/11/25 08:12:02 [error] 3794#3794: *13 NAXSI_EXLOG: ip=127.0.0.1&server=localhost&uri=/service/sec_filter&id=42000361&zone=HEADERS&var_name=user-agent&content=Apache-HttpClient/4.5.2%20(Java/1.8.0_102), client: 127.0.0.1, server: lo$
2016/11/25 08:12:02 [error] 3794#3794: *13 NAXSI_EXLOG: ip=127.0.0.1&server=localhost&uri=/service/sec_filter&id=11&zone=BODY&var_name=&content=, client: 127.0.0.1, server: localhost, request: "POST /service/sec_filter HTTP/1.1", host: $
2016/11/25 08:12:02 [error] 3794#3794: *13 NAXSI_FMT: ip=127.0.0.1&server=localhost&uri=/service/sec_filter&learning=0&vers=0.55rc2&total_processed=1&total_blocked=1&block=1&cscore0=$UWA&score0=8&zone0=HEADERS&id0=42000361&var_name0=use$
2016-11-25 08:12:02[debug][3721][main]@doExternalBodyFilter: Executed state code405
2016-11-25 08:12:02[debug][3721][main]@BodyFilter:sec check result = true
2

Start with the reported request flow from an nginx-clojure handler to another nginx location using Apache Http Client, and review the supplied error-log sequence involving Naxsi and the 405 response. No source files or tests are named, so first identify the handler and request-processing entry points and reproduce the failure before defining done as the original client receiving a response without the process becoming unresponsive.