Encountered error 1452
There is a bundle of jshopping + AcyMailing and the addon "[Addon acymailing newsletter](https://www.webdesigner-profi.de/joomla-webdesign/shop/addons/addon-acymailing-newsletter.html)
".
JoomShopping, Joomla and AcyMailing are the latest versions.
This error occurs when trying to register on a site with the subscription checkbox enabled.