Site Not Taking Customer To Paypal

-- HikaShop version -- : 3.5.1
-- Joomla version -- : 3.8.10

It seems like every time someone tries to make an order on my website there's an issue.

Someone just called me to say that after they click on "pay now or Finish", nothing happens. It does not take them to Paypal to make the payment.

I'm stumped as to why because when I last tested it it worked fine. Maybe it's a combination of Joomla and Hikashop updates that are throwing things out of whack and unfortunately making me loose sales.

If I can get some help ASAP that would be great.

Thanks!

Sorry about that and thanks for the quick response.

I took a copy of the site and tested it and it does appears to work. Not sure why this person is having problems because he tried twice before calling me.

1) I noticed that when I go to the paypal page, it didn't have an option to cancel and return to merchant, is that something that I can add via the website? I think it would be good to have.

2) Also, on the shopping cart page if there is an issue, for example, if the captcha is wrong, is there a way to make it slide up to the message or have it popup so users cannot miss the message.

3) And last, can the Paypal page open in a new window?

Thanks

Thank you