Job aborted due to stage failure. Executor heartbeat timedout error after 203646 ms

Hi, 

We are getting below error sometimes randomly during the execution of different mapping data flow in Azure data factory. 

Job aborted due to stage failure. Task in stage failed 1 times , most recent failure. Lost task in stage.  Executor heartbeat timedout error after 203646 ms. 

Is anyone aware of the reason of this ? 

Any idea to resolve this would be appreciated.