11750: TwiML response body too large

In your response to Twilio's request, the response body is larger than 64 kB.

• The TwiML that you are serving is larger than 64 kB
• You are serving non-TwiML in your response

• Limit your TwiML response to 64 kB or less
• Verify that you are serving TwiML in your response to Twilio's request