This has happened to us with a Client who is unable to pay an invoice for the past 2 days.

How is this issue not fixed, or at least giving a better Error message back so the Client knows what might be wrong??

There are tens of tickets here with this same exact error, yet it hasn't been fixed.
I'm moving away from Quickbooks immediately this is completely unprofessional and asinine that this has NOT BEEN FIXED YET.