Go on your plugin list and hover the edit button for the selected plugin. Have a look at the url. It should be something like:
http://<domain>/wp-admin/plugin-editor.php?file=<path-to-plugin>
Go on your plugin list and hover the edit button for the selected plugin. Have a look at the url. It should be something like:
http://<domain>/wp-admin/plugin-editor.php?file=<path-to-plugin>