Describe the bug

In the BO > Order page > Order view page, when we try to cancel a product, an exception is displayed.

Steps to Reproduce

Steps to reproduce the behavior:

0. Create order from the FO
1. Go to BO > Customer Service > Marchandise return > Enable returns
2. Go to BO > Order page > Last order created
3. In the Documents tab > generate an invoice
4. Click on the cancel products button
5. Select any product
6. Click on cancel products
7. See the error

Screenshots

Additional information

• PrestaShop version: 1770rc1build4
• PHP version: 7.2