Hi there, @School overpayment. Fixing error 324 involves updating your connection, as this error typically indicates your bank has updated something on their end, or you have multiple accounts with similar names.
As you've been experiencing this since last week, I recommend contacting our live support team. They can start a screen-sharing session to look into your account setup and investigate further. You can connect with them through the Gear icon in the upper right corner.
Feel free to reach out if you have more questions about QuickBooks.