Infinite recursion bug when calling generate_number

[toxicpuzzle]

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In the main.py file, when jsonformer fails to generate a number, it continues calling generate number, but without incrementing the iterations variable, causing the "Failed to generate a valid number" to never get called and we get max recursion depth exceeded error.

[liqul]

I don't know why sometimes it fails to generate any numbers which caused my experiments to fail. That's why I have to make a workaround by returning a default number when it fails after 3 iterations.