title: Nodejs MaxListenersExceededWarning
body: <p>I have an error and I don't know how to solve it. It happens only some times.</p>
  
  <p>Error message:</p>
  
  <pre><code>(node:9140) MaxListenersExceededWarning: Possible EventEmitter memory leak detec
  ted. 11 error listeners added. Use emitter.setMaxListeners() to increase limit
  </code></pre>