Widget contact form freeze my page

Hello i have tried to use one of your contact us widget on my page by the time i was editing it and my then my screen froze any solutions ?

Please provide us more details about your issue. Which widget did you added to your form? 

Did your screen froze when you added widget inside of Form Builder or did your form froze your screen?

Also please provide us ID of the form you are working on and provide us URL of your webpage if your form is embedded. 

Looking forward to your reply.