in my wordpress user i've administrator permissions.
After installation, i can't activate the plugin with the button "activate" because appears this message:
This plugin can only be activated and accessed through the Newtork Admin.
When i try to uninstall the plugin, i receive this message response:
Fatal error: Call to undefined function switch_to_blog() in /web/htdocs/MY_DOMAIN/home/wp-content/plugins/multisite-robotstxt-manager/uninstall.php on line 32
How can i have these problems?