Hi . I am trying to visualize the process instance using bpmn.io javascript library. bpmn.io library requires only the xml content of the process in a String format. What i am doing is :

- Get the ProcessInstance for a speciffic id from the ProcessService

- Get Process property from the process instance

-Get Resource property from process

Resource resource = null;
   ProcessInstance processInstance = processService.getProcessInstance(processInstanceId);
   if (processInstance != null) {
  LOGGER.info("Process instance is not null!");
   Process process = processInstance.getProcess();
  resource = process.getResource();
   }

When trying to get the process the following exception is thrown :

Caused by: java.lang.IllegalStateException: Process instance 22[de.process.seed] is disconnected.

Can someone help me please?