PayPal error

-- HikaShop version -- : 3.2.2
-- Joomla version -- : 3.8.6
-- PHP version -- : 5.6
-- Browser(s) name and version -- : Chrom
-- Error-message(debug-mod must be tuned on) -- : Things don’t appear to be working at the moment. Please try again later

Hi!
Periodically there is a problem with PayPal.
After click by Process to pay, buyer over to PayPal page and see this message:
Things don’t appear to be working at the moment. Please try again later
So , this does not happen every time, but in 10% of cases.

Any solution?
Screenshot of Pay Pal plugin is attach
Thank you!

Problem is solved.