I have installed and activated the plug in. But on woocommerce –> Settings –> Shipping there is any setting regarding your plug in. A few days ago I was able to see it, but now it is disappeared.
Thanks for your help.
Please refresh the plugin page and check if the plugin stays activated, and check in the plugin page if you see the settings option under the plugin name.
If you’re installing the plugin in Multi site, make sure you have deactivated in Network admin and activate the plugin only on the sub sites.