"Purchase Failed" after Ultimate Edition Upgrade

Game: NFS Unbound: Palace Edition w/ Ultimate Edition Upgrade

Platform: PlayStation 5

Problem: After purchasing the Ultimate Edition Upgrade for NFS Unbound I am now unable to make any changes to my cars (vanity, parts, upgrades, etc.) or my character while online. I am met with an error that simply says "Purchase Failed". I also cannot sell any cars in my garage while online. I can load into both story mode and online mode but the problem exists in both.

I am able to play the game normally with the Auto Sign-In option disabled, letting me play Story Mode as intended (including letting me buy/sell parts and vehicles). The moment I click Go Online the problems re-emerge.

Is there a fix for this issue that does not involve wiping my existing progress?