WebSocket request-response Sampler error

[Former user]

I am new to Jmeter and I need to parse a variable to the existing websocket connection request which I am extracting through Regular expression Extractor and is working fine. But I am using "WebSocket request-response Sampler" to send the next request along with the variable I extracted. But when I run the script it is Giving me the Following Error : Response message:Sampler configured for using existing connection, but there is no connection

I tried using Use Existing Connection but not getting

[Peter Doornbosch]

And the sampler before the one giving the error was successful in setting up a websocket connection?

Can you attach a screenshot of your testplan showing results tree? Or mail it to me if you don’t want to make it public.