Hi,
In simple terms, a "call stack" is a list of files related to an error. If you look at the screenshot in your first message, you can see the text "call stack" in the center of the image, just before the long list of files.
What I'm saying is that even if the error message above that text "call stack" is the same, the files list below must be different.
And you confirm it with this new message. Before the call stack was pointing at the WorldPay Global gateway plugin. The new call stack you provided is pointing at the WorldPay Business gateway plugin. So similarly to what you did for the global gateway plugin, you need to download the latest version of the Business gateway plugin on our website to not get that error.
You're saying that these errors happened after updating HikaShop. However, HikaShop doesn't include these plugins anymore so it shouldn't do that. I suppose that you must have started with a really old version of HikaShop and you still have the folders for the global gateway and business gateway plugins in the administrator/components/com_hikashop/extensions/ folder. And the update process finds these old versions and reinstall them which overwrite the new versions you're using, generating these errors.
Please delete that whole administrator/components/com_hikashop/extensions/ folder via FTP. It will prevent the issue from happening again in the future.