Hi F1Andy,
Which bank provider is your savings account with?
It may be that this specific account type is no longer supported via an Open Bank connection - most temporary bank errors can be fixed by disconnecting and reconnecting the account within QuickBooks. You can do this by going to Banking > Select the pencil icon showing above the bank balance > Select 'Edit account info' > Select 'Disconnect this account on save' and save.
To add this back, go to Baking > Link account > Search and select the provider > Follow the on-screen flow to re-connect. If your account doesn't appear when re-directed to the banks' site during the connection process then this suggests that the bank is not currently supported on Open Banking with QuickBooks.
Thanks!
