Roundcube plugin error

Please explain me how you installed the current version.
Was it an upgrade from an older version or a fresh installation?

Got it! Here the steps to reproduce the issue:

- Install 1.0.0 plugin version
- Run 'perl /var/www/imscp/engine/setup/imscp-setup -d' and complete the setup process
- Deactivate the plugin
- Uninstall the plugin and you should get the error

Why do you run the setup?
You have to install the plugin with the panel itself. Then the plugin will add the permissions which are now not available.

I run the setup to update PMA each time a new version is available. Maybe it is better to disable all plugins before running any update to i-MSCP.

Ok. I understand. I will talk to @Nuxwin . Maybe the permissions were removed with a new version of phpmyadmin

@TheCry

Your plugin grants some permissions itself to the roundcube_user SQL user which is created by the roundcube package provided by i-MSCP. The problem is that when i-MSCP is updated or reconfigured, the roundcube_user SQL user is reseted (removed and recreated). This is the the same thing for all SQL users which are created by the i-MSCP packages. Thus, this involve the following:

• If an user installs your plugin and then update or reconfigures i-MSCP, the password changer plugin will no longer work ( no write permissions on the mail_users table).
• If an user installs your plugin, update/reconfigure i-MSCP and then, try to uninstall your plugin, an error ( such as the one posted by redcloud ) will be raised because the permissions doesn't exists anymore.

It's an implementation problem in your plugin. I'll fix that

Thank you @Nuxwin