The error code 590 indicates an unexpected issue from your bank's end, artfabricators. Let me share some valuable insights in resolving this problem.

I suggest logging into your bank's website and checking if you receive any notifications related to the problem you're getting.

You can also directly contact them to obtain more detailed information about the issue and to seek advice. Once everything is working on their end, you can update the connection again QBO. 

When your transactions are downloaded, you can categorize them to ensure accurate financial recording.

If you need further help connecting your bank account, don't think twice to go back to this thread. We're always here to support you in accomplishing your tasks!