Product Management Dashboard is now JIRA 9.12 compatible.
If you like to have all new features, you have to switch to the newes version of the Product Management Dashboard, which is available for self hostet systems, which means Jira Datacenter and Jira Server and for cloud versions too.
Here is the link to the latest version:
https://www.pro-productmanagement.com/product-management-software
Best regards your proProduktmanagement Team