unexpected error in dataflow

[Muthuvel_s]

Hi Everyone
         i didn't see that power query editor in dataflow .but scheduled refresh is also working  fine. Suddenly am getting this type of error. how to resolved it. i didnt understand which type of error in this, please sort me out.

[v-cazheng-msft]

Hi, @Muthuvel_s 

Which data source did you use to create the dataflow? Can you see power query when you create the dataflow? Have you tried reopen the dataflow or refresh the browser page?

Best Regards,

Caiyun Zheng