I am getting this error message when renewing suscriptions. Also when updating status on a subscription.
Any suggestions please?
An error has occurred.
1452 Cannot add or update a child row: a foreign key constraint fails (`nabo2516_new`.`#__acym_user_has_list`, CONSTRAINT `fk_#__acym_user_has_list2` FOREIGN KEY (`list_id`) REFERENCES `#__acym_list` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION)
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It came back again. I then found that this is related to the integration with Acymail6. Some plans undated without error, some did not.
I have set all plans to make no changes to the assigned mailing list, just stay as is, and this creates no error for all plans.
I see in the individual plan settings for Acymail, having set a mail list for an option it can be a changed to another list, but it cannot be deselected from all lists.