While I enable the confluence email notifications plugin in the add-on, the system returned :This add-on failed to enable.
The information in the logs is:java.lang.classnotfoundexception: com.atlassian.confluence.plugins.lookandfeel.SiteLogoManager.
But the Confluence look and feel logo plugin is enabled.
how to solve it?
That suggests you are using an add-on that is not compatible with your version of Confluence. What add-on is it?
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.