I’ve gone for the easier approach of just adding a new dummy “forminator.php” file with no content in the includes directory instead of copying forms.php. That file gets included just before the forminator.php file anyway, so just having something present there is enough for the plugin to work again.
I’ve gone for the approach to add a dummy (empty) forminator.php in the includes folder of the plugin. But commenting out the require_once or adding a file presence check also solves the issue. It looks like they didn’t test the free tier properly and then made the classic mistake of deploying a change on Friday 😅.
