Installing advanced_params via Discovery fails

MaximenuCK v6.0.11
params v1.1

I was checking my new site 2.5.6 after it went live and found that under the Extension Manager Discovery options the following items were available for install.

advanced_params_maximenu_ck-en
advanced_params_maximenu_ck-fr

When I try to install them I get the following errors:

JFolder: :files: Path is not a folder. Path: C:\wamp\www\mallacoota.biz.test\plugins\system\advanced_params_maximenu_ck-en
JInstaller: :Install: Cannot find XML setup file
Failed loading XML file
C:\wamp\www\mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-en.xml
XML: failed to load external entity "file:///C:/wamp/www/mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-en.xml"
Failed loading XML file
C:\wamp\www\mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-en.xml
XML: failed to load external entity "file:///C:/wamp/www/mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-en.xml"
XML: failed to load external entity "file:///C:/wamp/www/mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-en.xml"
JFolder: :files: Path is not a folder. Path: C:\wamp\www\mallacoota.biz.test\plugins\system\advanced_params_maximenu_ck-en
JInstaller: :Install: Cannot find XML setup file
JFolder: :files: Path is not a folder. Path: C:\wamp\www\mallacoota.biz.test\plugins\system\advanced_params_maximenu_ck-en
JInstaller: :Install: Cannot find XML setup file
Failed loading XML file
C:\wamp\www\mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-fr.xml
XML: failed to load external entity "file:///C:/wamp/www/mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-en.xml"
XML: failed to load external entity "file:///C:/wamp/www/mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-en.xml"
XML: failed to load external entity "file:///C:/wamp/www/mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-fr.xml"
Failed loading XML file
C:\wamp\www\mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-fr.xml
XML: failed to load external entity "file:///C:/wamp/www/mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-en.xml"
XML: failed to load external entity "file:///C:/wamp/www/mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-en.xml"
XML: failed to load external entity "file:///C:/wamp/www/mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-fr.xml"
XML: failed to load external entity "file:///C:/wamp/www/mallacoota.biz.test/plugins/system/advanced_params_maximenu_ck-fr.xml"
JFolder: :files: Path is not a folder. Path: C:\wamp\www\mallacoota.biz.test\plugins\system\advanced_params_maximenu_ck-en
JInstaller: :Install: Cannot find XML setup file

Then on the "Manage" tab they appear to be installed. I tried to uninstall them and then get the following error:

Plugin Uninstall: Manifest file invalid or not found.

Can you please advise how to correct this issue.

Hi
this items must not be installed, they appear because they are stored in the plugin folder. It will be fixed in the next version of the plugin
don't worry, you don't have anything to do with this
Ced