(DBConnection.ConnectionError) tcp recv: closed

gistfile1.txt

16:52:45.342 [error] GenServer {Commanded.Registration.LocalRegistry, {Commanded.Event.Handler, "issue"}} terminating
** (DBConnection.ConnectionError) tcp recv: closed
    (ecto) lib/ecto/adapters/postgres/connection.ex:92: Ecto.Adapters.Postgres.Connection.execute/4
    (ecto) lib/ecto/adapters/sql.ex:256: Ecto.Adapters.SQL.sql_call/6
    (ecto) lib/ecto/adapters/sql.ex:542: Ecto.Adapters.SQL.struct/8
    (ecto) lib/ecto/repo/schema.ex:547: Ecto.Repo.Schema.apply/4
    (ecto) lib/ecto/repo/schema.ex:292: anonymous fn/14 in Ecto.Repo.Schema.do_update/4
    (ecto) lib/ecto/repo/schema.ex:774: anonymous fn/3 in Ecto.Repo.Schema.wrap_in_transaction/6
    (db_connection) lib/db_connection.ex:1366: DBConnection.transaction_nested/2
    (db_connection) lib/db_connection.ex:1226: DBConnection.transaction_meter/3
    (db_connection) lib/db_connection.ex:790: DBConnection.transaction/3
    (ecto) lib/ecto/multi.ex:421: Ecto.Multi.apply_operation/5
    (elixir) lib/enum.ex:1826: Enum."-reduce/3-lists^foldl/2-0-"/3
    (ecto) lib/ecto/multi.ex:411: anonymous fn/5 in Ecto.Multi.apply_operations/5
    (ecto) lib/ecto/adapters/sql.ex:576: anonymous fn/3 in Ecto.Adapters.SQL.do_transaction/3
    (db_connection) lib/db_connection.ex:1275: DBConnection.transaction_run/4
    (db_connection) lib/db_connection.ex:1199: DBConnection.run_begin/3
    (db_connection) lib/db_connection.ex:790: DBConnection.transaction/3
    (ecto) lib/ecto/repo/queryable.ex:23: Ecto.Repo.Queryable.transaction/4
    (issues) lib/projections/ecto.ex:74: PlanProp.Issues.Projections.IssueProjector.update_projection/3
    (commanded) lib/commanded/event/handler.ex:320: Commanded.Event.Handler.handle_event/2