I tested and got same error on both forms.
CF7 plugin appears to be working correcty at http://drbevinsb.com/ (form not working). Getting following eror, which is what you would expect when have a problem with sending email from this form.
{"mailSent":false,"into":"#wpcf7-f1303-p10-o1","captcha":null,"message":"Failed to send your message. Please try later or contact the administrator by another method."}
I note that this form does not have email field which other form does. Your host may require a valid return email address to send email.
Only other suggestion is to check carefully your email address settings for this form in comparison with other form.
See Contact Form 7 Email Issues for explanation of range of email issues.