QuickBooks is the most preferable accounting and bookkeeping software for small and mid-sized business owners. When you use QuickBooks Banking and try to import your banking and bank feeds in QuickBooks Online. While you attempt to access the bank account, you may encounter QuickBooks error 324 or 106. This online banking error can appear in different scenarios. For instance, when you log in to the bank website, QuickBooks Online fails to find your account. This may happen when the bank account has been closed and QuickBooks is not able to show up in the records.