Error Invalid extension update

-- url of the page with the problem -- : harborrvservice.com/
-- HikaShop version -- : 4.0.2
-- Joomla version -- : 3.9.8
-- PHP version -- : 7.3.11
-- Browser(s) name and version -- : Chrome - latest
-- Error-message(debug-mod must be tuned on) -- : When I try and update, I get
Error
Invalid extension update

When I try and run the update, see picture

Hi,

I'm not sure why you would get that error. However you can circumvent it by downloading the latest version install package from the menu My account>My subscriptions on our website and installing it on your website. It will do the update like the Joomla updater would (the Joomla updater actually just downloads the latest version install package and installs it for you).