I can't enable the User Profile Plugin

It may be possible, that after a restart of your server you are not able to enable the User Profile Plugin.

This issue is caused by a version mismatch of a bundle, that can be used by different plugins. It might be that, if you install or update a plugin, that uses this bundle, the bundle will be overwritten with a different version. As long as you do not restart your server, everything will still work fine. With the restart of your server, the User Profile Plugin wants connect with this bundle again, but can't find the right version (since it has been overwritten by an older version) and therefore will be disabled and cannot be enabled again.

The workaround for the moment is to simply reinstall the User Profile Plugin. The issue is handled in

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. Please have a look at the ticket for more technical details.