Error: 503 Service Unavailable: Back-end server is at capacity

[hfreire]

View details in Rollbar: https://rollbar.com/hfreire/get-me-a-date/items/16/

Error: 500 Internal Server Error
  File "/opt/get-me-a-date/node_modules/tinder-wrapper/lib/tinder-wrapper.js", line 105, in <unknown>
                  throw new Error(statusCode + ' ' + statusMessage);
  File "/opt/get-me-a-date/node_modules/bluebird/js/release/util.js", line 16, in tryCatcher
            return target.apply(this, arguments);
  File "/opt/get-me-a-date/node_modules/bluebird/js/release/promise.js", line 512, in Promise._settlePromiseFromHandler
            x = tryCatch(handler).call(receiver, value);
  File "/opt/get-me-a-date/node_modules/bluebird/js/release/promise.js", line 569, in Promise._settlePromise
                this._settlePromiseFromHandler(handler, receiver, value, promise);
  File "/opt/get-me-a-date/node_modules/bluebird/js/release/promise.js", line 614, in Promise._settlePromise0
        this._settlePromise(promise, handler, receiver, value);
  File "/opt/get-me-a-date/node_modules/bluebird/js/release/promise.js", line 693, in Promise._settlePromises
                this._settlePromise0(this._fulfillmentHandler0, value, bitField);
  File "/opt/get-me-a-date/node_modules/bluebird/js/release/promise.js", line 638, in Promise._fulfill
                this._settlePromises();
  File "/opt/get-me-a-date/node_modules/bluebird/js/release/nodeback.js", line 42, in Request._callback
                promise._fulfill(value);
  File "/opt/get-me-a-date/node_modules/request/request.js", line 186, in Request.self.callback
          self._callback.apply(self, arguments)
  File "events.js", line 106, in emitTwo
  File "events.js", line 191, in Request.emit
  File "/opt/get-me-a-date/node_modules/request/request.js", line 1163, in Request.<anonymous>
        self.emit('complete', response, response.body)
  File "events.js", line 96, in emitOne
  File "events.js", line 188, in Request.emit
  File "/opt/get-me-a-date/node_modules/request/request.js", line 1085, in IncomingMessage.<anonymous>
          self.emit('end', chunk)
  File "events.js", line 292, in IncomingMessage.g
  File "events.js", line 91, in emitNone
  File "events.js", line 185, in IncomingMessage.emit
  File "_stream_readable.js", line 974, in endReadableNT
  File "internal/process/next_tick.js", line 80, in _combinedTickCallback
  File "internal/process/next_tick.js", line 128, in process._tickDomainCallback