Downgrading an add-on to an earlier version
If an update to an add-on seems to break the add-on or appears to cause other problems in the host application, you may need to remove the add-on or revert it to its earlier version. You can do so by replacing the add-on JAR file on disk.
Before starting, get the earlier plugin version from Atlassian Marketplace. Download links for the earlier versions appear in the version history section of the add-on page.
Once you have the JAR file of the version you want to apply, follow the instructions for updating UPM by file replacement to downgrade the add-on version. The downgrade procedure for any add-on is the same as for UPM.
For Confluence, you must first remove the add-on artifact from the database. For more information, see the How to manually remove malfunctioning add-ons article in the Confluence Knowledge Base.