Error message in some site

Hello,Have strange question, but I'll ask:Regularly I make weekly shopping (mainly food) by the internet, same site always.Starting yesterday, I can make the shopping order, but at the end when have to click on the OK, I get a message saying "dear customer... its not you its us, there is an error in our system, try later or call service".Called service, they instructed me to clear browsing history and cookies which I did and nothing happened, the error still there.Called them again, they said they do not find any error in their system.I checked my chrome browser, its updated. All other sites I opened behave normally.By the way, ran twice sfc scan - OK.Is it possible the error is in my system and I overlooked something ?Answers will be appreciated.ThanksMotimWin 10, 20H2 x 64, 19042.1348