ERROR: owt.RawTransport - TCP wrote data error: Broken pipe

[N__Aji]

Environment:
- Ver: ICS 4.2
- ICS-Conferece

We have developed a SFU conferencing solution. Last day  may of streams are added and suddenly closed. At that time we have seen a subscription error event was triggered. We have also got the following log.

2019-06-21 13:20:26,762  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe
2019-06-21 13:20:26,763  - ERROR: owt.RawTransport - TCP wrote data error: Broken pipe

1. Is this issue in server side or browser side ?
2. How can we avoid this error in future

Please help me.

Thanks