[FATAL] Replication stream was unexpectedly terminated

[14DF397FCA]

Hello,
The bottledwater ends job with error

[FATAL] Replication stream was unexpectedly terminated: ERROR: output_avro_change: row conversion failed: Cannot write 2083407 bytes in memory buffer.

We use postgres 9.5.6 on Ubuntu 16.04
We run bottledwater:
./bottledwater --postgres=postgres://postgres@localhost:5432/database -b 10.0.0.11:9092,10.0.0.12:9092,10.0.0.13:9092 --allow-unkeyed -f json

Has anyone encountered such error?