The backlink to 123FormBuilder must be present in your forms if you are on the Free (Basic) plan. In case you have removed it, go to your Publish section, copy the form code and paste it in your web page once again, without making any changes. If the link is not added back, the account will be suspended.
In order to avoid this limitation, upgrade your account to any of the paid plans.
Here is a list of the most frequently asked questions. For more FAQs, please browse through the FAQs page.