Hello Gonebdg,
I followed everything you said above here but it seems to not work?(still getting authentication failed) Do i need to re-import all my customers after this fix? since i have done the import before the fix? All tough i did fully restore the customer group through the database.
About the customers it self i have done this through CSV imporrt within the back office of prestashop is this the right way or should i do this through the database?
Kind regards,
Lars van Oostrum