Wrong window size in output window while replaying citrix scripts

I am using LR version 11.52 for testing an Oracle form 6i application.
The application appears as an icon in Citrix receiver and has to be launched from the receiver and there is no url either for Citrix or for the application.
I tried scripting of the application using single protocol CitrixIcA and recorded the flow. Although events were recorded ,.when I replayed the script, error in output window was:
Error: Failed to get window size, wrong format. Unable to detect client version. Warning: Extension CitrixClientImpl.dll reports error -1 on call to function ExtPerThreadInitialize Error: Vuser failed to initialize extension CitrixClientImpl.dll in load runner.

Please suggest some work around to resolve the issue.

I asked for the ica file for the application but Citrix team was not able to provide it and thus I used hostname , user I'd and password in the logim tab of the load runner tool to access the application

Additional information:
Tool used: LR 11.52
Citrix server xenapp 6.5

(I tried recording a combination of other protocols like Oracle nca, Citrix + web but no events were recorded)

Please help to resolve the issue.