title: Can't find scripting engine for 'groovy': scriptEngine is null
body: <p><a href="https://i.stack.imgur.com/mLgrs.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mLgrs.png" alt="enter image description here"></a></p>
  
  <p>Error: </p>
  
  <ol>
  <li><p>Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.camunda.bpm.engine.exception.NullValueException: Can't find scripting engine for 'groovy': scriptEngine is null] with root cause</p></li>
  <li><p>org.camunda.bpm.engine.exception.NullValueException: Can't find scripting engine for 'groovy': scriptEngine is null</p></li>
  </ol>
  
  <p>My code XML :</p>
  
  <p><a href="https://i.stack.imgur.com/Xasqy.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Xasqy.png" alt="enter image description here"></a></p>