The date outputting when you open a widget is a common sign that Wordfence, for whatever reason, has incorrectly flagged the request. To resolve this please navigate to WP AdminWordfenceTools and open the Live Traffic tab. Filter by Blocked by Firewall and search the request you just made, it’ll be associated with your user account and the parm will start with body: instance=%7B%22frames%22%3A%5B%7B%22content. Click Whitelist param from Firewall.
This is our free support forum. Replies can take several days. If you need fast email support, please purchase a SiteOrigin Premium license.