This is ridiculous, I only joined Quickbooks in December and it has never worked. 

This is a Quickbooks issue. It seems to be a known issue to Handelsbanken as of 3rd of January, the issue is with QuickBooks and their 'screenscraping' feed. Handelsbanken have not changed anything their end at all as it was working previously. I understand the deadline to resolve is now March 2020!