Magento 2 Support

Need to debug a few items. Whenever I add or duplicate a product I get one of the following errors:

Invalid input datetime format of value 'Invalid date'

Notice: Undefined index: category_id in /chroot/home/a99c0770/timepieceperfection.com/vendor/magento/module-catalog-url-rewrite/Model/Category/Plugin/Storage.php on line 52