Get error ECONNRESET in colyseus/proxy

Hi everyone,
I use colyseus/proxy for my game. Everything is right and and I deployed all successfully.
But something I get this error ECONNRESET in log of proxy.
This make proxy died and I cant connect to my game.
It happen not usually. Sometime it happen. I dont know what reason is.
It's log from my proxy

2021-03-08T05:22:11: Using proxy 0 /colyseus//api/room?roomId=AxsYHi3Fr
2021-03-08T05:22:11: Using proxy 0 /colyseus//api
2021-03-08T05:22:16: Using proxy 0 /colyseus//api/room?roomId=AxsYHi3Fr
2021-03-08T05:22:16: Proxy error during: /colyseus//api/room?roomId=AxsYHi3Fr
2021-03-08T05:22:16: Error: read ECONNRESET
    at TCP.onStreamRead (internal/stream_base_commons.js:111:27)
2021-03-08T05:22:16: node VTbmaNTBD/95.111.196.179:8080 failed, unregistering
2021-03-08T05:22:16: Using proxy NaN /colyseus//api/room?roomId=AxsYHi3Fr
2021-03-08T05:22:16: No proxy available! {}
2021-03-08T05:22:16: cleaned up VTbmaNTBD presence
2021-03-08T05:22:16: Using proxy NaN /colyseus//api
2021-03-08T05:22:16: No proxy available! {}

Anyone has same problem ? And how to solve it ?
Thanks all.