^^&&^^

Edit File: class-pum-extension-activation.php

<?php
/**
 * Activation handler
 *
 * @package     PUM\SDK\ActivationHandler
 * @since       1.0.0
 * @copyright   Copyright (c) 2023, Code Atlantic LLC
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Popup Maker Extension Activation Handler Class
 *
 * @since       1.0.0
 */
class PUM_Extension_Activation {

/**
	 * Plugin Name.
	 *
	 * @var string
	 */
	public $plugin_name;

/**
	 * Plugin Path.
	 *
	 * @var string
	 */
	public $plugin_path;

/**
	 * Plugin File.
	 *
	 * @var string
	 */
	public $plugin_file;

/**
	 * Popup Maker Installed
	 *
	 * @var boolean
	 */
	public $has_popmake;

/**
	 * Popup Maker Base Path.
	 *
	 * @var string
	 */
	public $popmake_base;

/**
	 * Setup the activation class
	 *
	 * @access      public
	 * @since       1.0.0
	 *
	 * @param string $plugin_path Path.
	 * @param string $plugin_file File.
	 */
	public function __construct( $plugin_path, $plugin_file ) {
		// We need plugin.php!
		require_once ABSPATH . 'wp-admin/includes/plugin.php';

$plugins = get_plugins();

// Set plugin directory.
		$plugin_path       = array_filter( explode( '/', $plugin_path ) );
		$this->plugin_path = end( $plugin_path );

// Set plugin file.
		$this->plugin_file = $plugin_file;

// Set plugin name.
		if ( isset( $plugins[ $this->plugin_path . '/' . $this->plugin_file ]['Name'] ) ) {
			$this->plugin_name = str_replace( 'Popup Maker - ', '', $plugins[ $this->plugin_path . '/' . $this->plugin_file ]['Name'] );
		} else {
			$this->plugin_name = __( 'This plugin', 'popup-maker' );
		}

// Is Popup Maker installed.
		foreach ( $plugins as $plugin_path => $plugin ) {
			if ( 'Popup Maker' === $plugin['Name'] ) {
				$this->has_popmake  = true;
				$this->popmake_base = $plugin_path;
				break;
			}
		}
	}

/**
	 * Process plugin deactivation
	 *
	 * @access      public
	 * @since       1.0.0
	 * @return      void
	 */
	public function run() {
		// Display notice.
		add_action( 'admin_notices', [ $this, 'missing_popmake_notice' ] );
	}

/**
	 * Display notice if Popup Maker isn't installed
	 */
	public function missing_popmake_notice() {
		if ( $this->has_popmake ) {
			$url  = esc_url( wp_nonce_url( admin_url( 'plugins.php?action=activate&plugin=' . $this->popmake_base ), 'activate-plugin_' . $this->popmake_base ) );
			$link = '<a href="' . $url . '">' . __( 'activate it', 'popup-maker' ) . '</a>';
		} else {
			$url  = esc_url( wp_nonce_url( self_admin_url( 'update.php?action=install-plugin&plugin=popup-maker' ), 'install-plugin_popup-maker' ) );
			$link = '<a href="' . $url . '">' . __( 'install it', 'popup-maker' ) . '</a>';
		}

// translators: 1. plugin name.
		echo '<div class="error"><p>' . esc_html( $this->plugin_name . sprintf( __( ' requires Popup Maker! Please %s to continue!', 'popup-maker' ), $link ) ) . '</p></div>';
	}
}