Whisper hallucination - how to recognize and solve?

I have changed the temperature value from 0,2 to 0 (which now I understand is just a starting point for the model to find the best temperature for that chunk) and have tested it with 20 chunks in Croatian that contained repeated words before.

So, if anyone is having the same problem, I believe this is the right solution. Thanks again, @RonaldGRuckus.