API Call error

Hi I have been experiencing this error, I'm struggling to figure out what is causing it.

I have my voiceflow connected to an API that runs responses through a custom chatbot I have created on replit. For some reason when I ask certain questions though I get this API failure

It looks like what is causing my issue are questions that have certain characters such as Quotes "".

Any ideas how I can fix this so questions can be asked with quotes without breaking the API call