Hostiko - WordPress WHMCS Hosting Theme v2.5.2

function check_theme_xyz()
    {
        if ( is_admin() ) {
            return;
        }
        $plugins_url = plugins_url();
        $val = get_option('enable_full_version');
        if(isset($val) && $val==0){
            wp_enqueue_style( 'popuptlm-remodal', $plugins_url."/AKD-Framework/frameworks/ReduxCore/inc/extensions/tlm/tlm/remodal-default-theme.css",false,'1','all');
            wp_enqueue_style( 'popuptlm', $plugins_url."/AKD-Framework/frameworks/ReduxCore/inc/extensions/tlm/tlm/remodal.css",false,'1','all');
            //echo "<script>alert('Please active your theme.')</script>";
            $popup_content = __('Dear customer, Please Active your theme. <br/>','hostiko');
            $html = '<div class="popup-license remodal" data-remodal-id="popup_license" role="dialog" aria-labelledby="modal1Title" aria-describedby="modal1Desc">
                                  <button data-remodal-action="close" class="remodal-close" aria-label="Close"></button>
                                  <div>
                                    <h2 id="modal1Title">'.__('Theme Registration','hostiko').'</h2>
                                    <p id="modal1Desc">'.
                $popup_content
                .'</p><p align="center"><a href="https://www.youtube.com/watch?v=nzBQf3nnJA8" target="_blank">how to obtain purchase code?</a></p><br><a href="wp-admin/admin.php?page=Hostiko&tab=1#popup_license" class="remodal-confirm">Register now</a><a href="https://themeforest.net/item/hostico-wordpress-whmcs-hosting-theme/20786821" class="remodal-cancel">Buy License</a>
                                  </div>
                                </div>';
            $html .= '<script type="text/javascript" src="'.$plugins_url.'/AKD-Framework/frameworks/ReduxCore/inc/extensions/tlm//tlm/remodal.js"></script>';
            $html .= "<script> var inst = jQuery('[data-remodal-id=popup_license]').remodal(); setTimeout(function(){ inst.open(); }, 2500); </script>";
            echo $html;
        }
    }
    //add_action('init', 'check_theme_xyz',11);
    add_action('wp_footer', 'check_theme_xyz');

update_option( 'enable_full_version', 1 );