I’ve found it in the database. The post_content shows this:
a:5:{s:2:"id";i:22768;s:4:"type";s:12:"wapf_product";s:6:"layout";a:3:{s:15:"labels_position";s:5:"above";s:21:"instructions_position";s:5:"field";s:13:"mark_required";b:1;}s:6:"fields";a:2:{i:0;a:10:{s:2:"id";s:13:"624c1ce297738";s:5:"label";s:16:"Naam van je kind";s:11:"description";N;s:4:"type";s:4:"text";s:8:"required";b:1;s:5:"class";N;s:5:"width";N;s:7:"options";a:0:{}s:12:"conditionals";a:0:{}s:7:"pricing";a:3:{s:4:"type";s:5:"fixed";s:6:"amount";d:0;s:7:"enabled";b:0;}}i:1;a:10:{s:2:"id";s:13:"624c1cf74ea49";s:5:"label";s:25:"Geboortedatum van je kind";s:11:"description";N;s:4:"type";s:4:"text";s:8:"required";b:1;s:5:"class";N;s:5:"width";N;s:7:"options";a:0:{}s:12:"conditionals";a:0:{}s:7:"pricing";a:3:{s:4:"type";s:5:"fixed";s:6:"amount";d:0;s:7:"enabled";b:0;}}}s:11:"rule_groups";a:1:{i:0;a:1:{s:5:"rules";a:1:{i:0;a:3:{s:5:"value";a:1:{i:0;a:2:{s:2:"id";s:5:"21906";s:4:"text";s:45:"Van Ster naar Ster, vzw Kong - 27/08 - 14.00u";}}s:9:"condition";s:8:"!product";s:7:"subject";s:7:"product";}}}}}
Other than that, there’s a post title, a post name and a url, but all other database fields are blank.