E-factura not working and throwing | Access Error. without details

[RoobleCali]

Module

10n_ro_account_edi_ubl

Describe the bug

Could anyone help me with this issue? I obtained an access token from the accountant and entered it into the designated field. It worked fine for a couple of days, but now it keeps giving me an 'access error' without providing any details about the cause of the issue. Can anyone assist me with this problem?

To Reproduce

Affected versions:
version 15

Expected behavior
I was expecting it to either send the e-factura or provide a clear error message explaining why it failed.