As someone with almost 100% visual impairment, I'm having a hard time dealing with CAPTCHAS. I find it more difficult to slove hCAPTCHA than Google reCaptcha.
Most of the times I can easily solve Google reCaptcha. However, If I don't know the meaning of the object being displayed / any difficulties seeing it, Google won't let me switch to audio mode ( It'll display something like "This feature is currently unavailable" or "We have detected unusual traffic from your network"
The error you're seeing is a false-positive, an it may be illegal for reCAPTCHA to deny you access.
I've rised the issue last year with the W3C [1] and now your experience is publicly documented [2], though the next step would be to file complaints and take legal action for your rights to be respected.
Most of the times I can easily solve Google reCaptcha. However, If I don't know the meaning of the object being displayed / any difficulties seeing it, Google won't let me switch to audio mode ( It'll display something like "This feature is currently unavailable" or "We have detected unusual traffic from your network"