Kickbox extension 404 error


New Member
I uploaded the file as mentioned in readme, activated the extension and then when I click to configure it : Unable to resolve the request “ext_kickbox_settings/index”
I try to desactivate, uninstall install again and rename apps/common/runtime and create new folder runtime with writable rights but it doesn't work : 404 error
Same error if I try to access to /backend/index.php/extensions/kickbox/settings
I use Cloudflare and I desactivated it, purge the cache, flush dns cache and it's the same problem.

Thanks by advance