Morning ruphus and thanks for the response.
I already started with a new config and can't spot anything out of the ordinary.... I have since changed from 'Emotionless' to 'BBStepgain' and get a slightly different error now.
Also the error only occasionally occurs... in 12 hours it's only happened 8 times.
TypeError: Cannot read property 'Available' of undefined
at module.exports.parseBalance._.forEach (C:\snapshot\Gunbot-master\ctx\js\bittrex.js:0:0)
at arrayEach (C:\snapshot\Gunbot-master\node_modules\lodash\lodash.js:537:11)
at Function.forEach (C:\snapshot\Gunbot-master\node_modules\lodash\lodash.js:9359:14)
at Bittrex.parseBalance (C:\snapshot\Gunbot-master\ctx\js\bittrex.js:0:0)
at C:\snapshot\Gunbot-master\ctx\js\bittrex.js:0:0
at Request._callback (C:\snapshot\Gunbot-master\node_modules\node-bittrex-api\node.bittrex.api.js:144:11)
at Request.init.self.callback (C:\snapshot\Gunbot-master\node_modules\request\request.js:188:22)
at emitTwo (events.js:125:13)
at Request.emit (events.js:213:7)
at Request.<anonymous> (C:\snapshot\Gunbot-master\node_modules\request\request.js:1171:10)
at emitOne (events.js:115:13)
at Request.emit (events.js:210:7)
at IncomingMessage.<anonymous> (C:\snapshot\Gunbot-master\node_modules\request\request.js:1091:12)
at Object.onceWrapper (events.js:312:19)
at emitNone (events.js:110:20)
at IncomingMessage.emit (events.js:207:7)
at endReadableNT (_stream_readable.js:1045:12)
at _combinedTickCallback (internal/process/next_tick.js:102:11)
at process._tickCallback (internal/process/next_tick.js:161:9)
(node:8692) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: [object Object]
(node:8692) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.