Adding an image to my form and nothing happens.

I added an image to the form several times successfully, then when I selected Image in side menu, nothing happened. What am I doing wrong?

I'm not sure if I understand correctly the issue you're getting, but when you add an image to your form you should get an wizard like this: 

I think you are trying to add the image field from the Basic Fields: 

Please share us a screenshot when you're adding the field to your form, this guide will help you to upload an image with your post: 

How-to-add-screenshots-images-to-questions-in-support-forum

The screenshot should be of the web console, these keyboard shortcuts will help you to get the console on Chrome: 

Mac: Cmd + Opt + J

Windows: Ctrl + Shift + J

We look forward to your response.