Hi @NB Jascom. Welcome to QuickBooks Community thread.

I know how important it is for you to get your transactions into QuickBooks Online (QBO). To completely determine the suitable solution to the prompt you get, may I know the name of your financial institution? This way, I can check if there's an ongoing issue between your bank and QBO.

In the meantime, I suggest logging in to your online banking website to see if they're having system maintenance. This is also the possible reason why you get the banking error in QBO.

Furthermore, you can check the articles shared by my colleagues. Especially, about what to do if you can't find downloaded transactions or manually upload them into QuickBooks Online.

Feel free to update me here with your response. If you have additional questions, please comment them below. I always want to make sure your taken care of. More power to your business there in Johannesburg, South Africa.