Hi @BernadetteH655. I took a look at your email and checked it against the error you were seeing. This occurs in the older version of our editor which you are currently using to create and edit your emails. We can migrate your email into our current editor for no charge.
The cross-device editor looks and acts very similar to the third-generation editor you are using. It has additional features that are not available in the older editor. If you would like us to migrate your email, please email us at communitysupport(at)constantcontact(dot)com with your username, contact details, and a reference to our conversation here.
In the meantime, you can read more about the third-generation to CPE migration here.
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