if(!document.getElementById('paypal-smart-payment-script'))
{
var script = document.createElement("script");
script.type = "module";
script.id = "paypal-smart-payment-script";
script.src = "https://cdn02.plentymarkets.com/dcy9il1j82ms/plugin/20/paypal/js/smartPaymentScript.js";
script.setAttribute("data-client-id", "Aa-Owo5wf5exW_-lvvgC3txoleC3maJzRN_fapWX4EnMRcG-_UfiCmod68gCJiHGTrKPr9YQrGPfLdMQ");
script.setAttribute("data-currency", "EUR");
script.setAttribute("data-client-token", "eyJicmFpbnRyZWUiOnsiYXV0aG9yaXphdGlvbkZpbmdlcnByaW50IjoiOTBkMGJlM2QwNTk0MzJlZDI1Njk3Y2RkNWQ4ODFjODJlNDc5NDM5NDhiYTI0MTAyZmZhY2MxYWMyMjMzZTI2MXxtZXJjaGFudF9pZD1yd3dua3FnMnhnNTZobTJuJnB1YmxpY19rZXk9ajJmYzJqcHhkZzZ2cDg0ZiZjcmVhdGVkX2F0PTIwMjMtMDYtMDVUMTQ6MjI6NDAuNDE0WiIsInZlcnNpb24iOiIzLXBheXBhbCJ9LCJwYXlwYWwiOnsiaWRUb2tlbiI6bnVsbCwiYWNjZXNzVG9rZW4iOiJBMjFBQU1LWHJmVXVqcGQ5aC0wVUtPNVpNd3BLdkZGVmhkcVAteUJPVWZOZTlSRFZEODViTzE2WjRfTVhJbmlEdnlPbXBIUjc0VGRSbzg2elNYS3MwcVU0QVdYMTJVWVpnIn19");
script.setAttribute("data-append-trailing-slash", "");
script.setAttribute("data-locale", "de_DE");
document.body.appendChild(script);
} else {
var script = document.getElementById('paypal-smart-payment-script');
script.setAttribute("data-client-id", "Aa-Owo5wf5exW_-lvvgC3txoleC3maJzRN_fapWX4EnMRcG-_UfiCmod68gCJiHGTrKPr9YQrGPfLdMQ");
script.setAttribute("data-currency", "EUR");
script.setAttribute("data-client-token", "eyJicmFpbnRyZWUiOnsiYXV0aG9yaXphdGlvbkZpbmdlcnByaW50IjoiOTBkMGJlM2QwNTk0MzJlZDI1Njk3Y2RkNWQ4ODFjODJlNDc5NDM5NDhiYTI0MTAyZmZhY2MxYWMyMjMzZTI2MXxtZXJjaGFudF9pZD1yd3dua3FnMnhnNTZobTJuJnB1YmxpY19rZXk9ajJmYzJqcHhkZzZ2cDg0ZiZjcmVhdGVkX2F0PTIwMjMtMDYtMDVUMTQ6MjI6NDAuNDE0WiIsInZlcnNpb24iOiIzLXBheXBhbCJ9LCJwYXlwYWwiOnsiaWRUb2tlbiI6bnVsbCwiYWNjZXNzVG9rZW4iOiJBMjFBQU1LWHJmVXVqcGQ5aC0wVUtPNVpNd3BLdkZGVmhkcVAteUJPVWZOZTlSRFZEODViTzE2WjRfTVhJbmlEdnlPbXBIUjc0VGRSbzg2elNYS3MwcVU0QVdYMTJVWVpnIn19");
script.setAttribute("data-append-trailing-slash", "");
script.setAttribute("data-locale", "de_DE");
}
if(typeof renderPayPalButtons === 'function') {
renderPayPalButtons('647dfdc0387a7', 'paypal', 'buynow', 'pill', 'silver');
} else {
document.addEventListener('payPalScriptInitialized', () => {
renderPayPalButtons('647dfdc0387a7', 'paypal', 'buynow', 'pill', 'silver');
});
}
oder 
