Other languages can't play

Error Messge:

Error reading ping response
com.danikula.videocache.ProxyCacheException: Error opening connection for http://127.0.0.1:58711/ping with offset 0
at com.danikula.videocache.HttpUrlSource.open(HttpUrlSource.java:75)
at com.danikula.videocache.Pinger.pingServer(Pinger.java:86)
at com.danikula.videocache.Pinger.access$100(Pinger.java:28)
at com.danikula.videocache.Pinger$PingCallable.call(Pinger.java:108)
at com.danikula.videocache.Pinger$PingCallable.call(Pinger.java:104)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.io.FileNotFoundException: http://127.0.0.1:58711/ping
at com.android.okhttp.internal.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:197)
at com.danikula.videocache.HttpUrlSource.open(HttpUrlSource.java:70)
at com.danikula.videocache.Pinger.pingServer(Pinger.java:86) 
at com.danikula.videocache.Pinger.access$100(Pinger.java:28) 
at com.danikula.videocache.Pinger$PingCallable.call(Pinger.java:108) 
at com.danikula.videocache.Pinger$PingCallable.call(Pinger.java:104) 
at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) 
at java.lang.Thread.run(Thread.java:818) 

Pinger: Error pinging server (attempts: 3, max timeout: 280). If you see this message, please, email me danikula@gmail.com or create issue here https://github.com/danikula/AndroidVideoCache/issues
com.danikula.videocache.ProxyCacheException: Error pinging server (attempts: 3, max timeout: 280). If you see this message, please, email me danikula@gmail.com or create issue here https://github.com/danikula/AndroidVideoCache/issues
at com.danikula.videocache.Pinger.ping(Pinger.java:67)
at com.danikula.videocache.HttpProxyCacheServer.isAlive(HttpProxyCacheServer.java:187)
at com.danikula.videocache.HttpProxyCacheServer.getProxyUrl(HttpProxyCacheServer.java:119)
at com.danikula.videocache.HttpProxyCacheServer.getProxyUrl(HttpProxyCacheServer.java:100)
at com.lvfq.ekoomvp.util.musicplay.PlayService.startMp3(PlayService.java:149)
at com.lvfq.ekoomvp.util.musicplay.PlayService.access$100(PlayService.java:44)
at com.lvfq.ekoomvp.util.musicplay.PlayService$2.run(PlayService.java:113)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5942)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)

Start by reproducing the playback failure, then read Pinger.java and HttpUrlSource.java around the reported connection error. Trace the call through HttpProxyCacheServer.java and PlayService.java, and compare behavior for the affected languages. Done means the failing playback path is identified, corrected, and verified without the ping error.

Written by the indexing model from the issue text.