Issue with OCR Engine 5 using Pro API key

I’m using Pro api key for OCR from base64 image data to OCR Engine 5, Ocr Engine 5 server not working and returning this error,
{“OCRExitCode”:99,“IsErroredOnProcessing”:true,“ErrorMessage”:[“Value for parameter ‘language’ is invalid”],“ProcessingTimeInMilliseconds”:“15”}

I used api with language=“eng” and without language parameter but server returns above error every time. i used same request data with Free API with language parameter at that time it was working.

Currently Engine5 is only available on one of the 3 PRO API endpoints, so you please use this endpoint.

Engine5 will be soon available on all PRO endpoints (this month!).