HTTP POST on resource error on ACH manual payment

When trying to process an ACH payment as a manual process, add all bank information add and receiving the error HTTP POST on resource ‘’ failed: bad request (400).

did this process last year with no errors.

This error happens on both Chrome and edge browsers. Also tried in in private mode and incognito mode.
cleared cache and cookies. still receiving error.

any fixed for this issue or why is this error happening?

I am getting the same error. Did you ever find a fix?

Could you try closing all extra browser windows and use an incognito or private braising window?