Sometimes a problem can occur where your connection to the bank is lost or disconnected.
We recommend you try the following:
1: Login into app.aiia.eu with your connected email
2: When logged in, click on "Banks"
3: Click the bank connection you experience issues with
4: Click the blue "Options" button
5: Choose "Update account"
6: Log into the bank
If the login is successful, check whether the connection is reestablished with the service that you use.