Facebook link

It will not allow me to post my form on my facebook pGE

To embed your form to Facebook in Form Builder version 4, just go to Publish > Platforms > Facebook.

I test this on one of my test form and I was able to embed the form properly on my Facebook page.

Please try to re-embed the form on your Facebook page and see if this will fix the issue. Before you re-integrate please ensure that you have removed the JotForm App on your Facebook page. To remove the JotForm App, just go to your Facebook Page Setting > App > Click [X] button.