Seller is not registered to use this delivery service. evri next day delivery

I use to be able to use Evri next day delivery no problem but recently things have changed. using evri 2 day delivery on amazon will purchase. next day delivery label and when ever I have a next day delivery order it says "Seller is not registered to use this delivery service." even though I use to be able to access it and have my evri account linked. What has changed? Now I have to go to the evri website to purchase my label