Your site is reported as a dangerous phishing site by Google and by Safari. It is possible you have been hacked, you should refer to a security expert.
As for your question – it is very vague and without proper details there is really no support I can suggest. Please see this article on how to properly compose a support request https://fullworks.net/docs/plugins-general/troubleshooting-plugins-general/free-plugin-support/
Thread Starter
mzicom
(@mzicom)
I want to set the payment amount but I know how to use this shortcode[qpp amount=”$30″].
Can you explain your issue in detail?
Is it you don’t know how to use short codes generally? Or have you some other issue?
Thread Starter
mzicom
(@mzicom)
I want to set the price of a service at 20 euros. I want to display 20 euros on the payment form.
Use the plugin settings pages to set currency for the form you want.
settings > Set up tab > Enter currency code: (For example: GBP, USD, EUR)
Thread Starter
mzicom
(@mzicom)
Purchase at a fixed price:how to insert price? where do insert price?
One way is a shortcode as you first demonstrated
[qpp amount=’20’]
or you can use settings > form settings
see https://fullworks.net/docs/quick-paypal-payments/demos-quick-paypal-payments/purchase-at-a-fixed-price/