Hello, Sorry to hear you are having issues with your Contact Form 7. We do need a bit of information to better understand the issue. What specifically are you doing to get the error? What is the behavior you are expecting? Did the form work previously and then stop? If so, what did you do just prior to it happening? Have you gone through our WordPress Troubleshooting guide? Is it specifically this plugin or do other form plugins also fail? If you do all that and still get the error, please explain in exact steps how to duplicate the error so we can attempt to duplicate it and troubleshoot. Kindest Regards, Scott M