WSOD when trying to view edit product: EntityStorageException: $string ("You already have one item similar to @product-label in your cart.") must be a string

Problem/Motivation

Drupal\Core\Entity\EntityStorageException: $string ("You already have one item similar to @product-label in your cart.") must be a string. in Drupal\Core\Entity\Sql\SqlContentEntityStorage->save() (line 846 of drupal8.9/html/core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php).

I upgrade the commerce_license
I goto a product page like product/3 and I get WSOD with the above in my logs

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes