/root/BitBot/services/pushservice.js:46
      this.logger.log('Push notification sent!');
                  ^
TypeError: Cannot call method 'log' of undefined
    at /root/BitBot/services/pushservice.js:46:19
    at IncomingMessage. (/root/BitBot/node_modules/pushover-notifications/lib/pushover.js:133:8)
    at IncomingMessage.EventEmitter.emit (events.js:117:20)
    at _stream_readable.js:920:16
    at process._tickCallback (node.js:415:13)