Uncaught exception with errorEvent

[Raynos]

TypeError: Cannot read property 'errorEvent' of null
    at TChannelV2Handler.onResError (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/tchannel/v2/handler.js:941:8)
    at DefinedEvent.onResError [as listener] (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/tchannel/v2/handler.js:100:14)
    at DefinedEvent.emit (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/tchannel/lib/event_emitter.js:86:14)
    at TChannelV2Handler._handleCallFrame (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/tchannel/v2/handler.js:580:22)
    at TChannelV2Handler.handleCallResponse (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/tchannel/v2/handler.js:428:14)
    at TChannelV2Handler.handleEagerFrame (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/tchannel/v2/handler.js:196:25)
    at TChannelV2Handler.handleLazyFrame (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/tchannel/v2/handler.js:183:10)
    at TChannelConnection.handleReadFrame (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/tchannel/connection.js:382:18)
    at ReadMachine.handleReadFrame [as emit] (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/tchannel/connection.js:212:14)
    at ReadMachine.seek (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/bufrw/stream/read_machine.js:120:14)
    at ReadMachine.handleChunk (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/bufrw/stream/read_machine.js:67:28)
    at Socket.onSocketChunk (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/node_modules/tchannel/connection.js:129:29)
    at Socket.emit (events.js:95:17)
    at SocketInspector.inspectEmit (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/clients/socket-inspector.js:132:23)
    at Socket.boundInspectEmit [as emit] (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/clients/socket-inspector.js:51:14)
    at Socket.<anonymous> (_stream_readable.js:764:14)
    at Socket.emit (events.js:92:17)
    at SocketInspector.inspectEmit (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/clients/socket-inspector.js:132:23)
    at Socket.boundInspectEmit [as emit] (/var/cache/udeploy/r/hyperbahn/sjc1-produ-0000000109-v1/node_modules/hyperbahn/clients/socket-inspector.js:51:14)
    at emitReadable_ (_stream_readable.js:426:10)
    at emitReadable (_stream_readable.js:422:5)
    at readableAddChunk (_stream_readable.js:165:9)
    at Socket.Readable.push (_stream_readable.js:127:10)
    at TCP.onread (net.js:528:21)