When you try to do a bank feed or process a payment you get a message similar to the one below with bank name and number

The issue you are facing is due to your account bank or an issue with bank. You will need to call the bank the number will be displayed in the above image in place of {xxx-xxx-xxxx}

More information can be found on the below link 

Note: Please do not create a test company file, simply to to login to another company file and try it, if you do not have another company file please contact us and we can create a test company for you.