[900 RC1 Build 51] Error 500 when I change header logo for a second shop

[paulnoelcholot]

Describe the bug and add attachments

ON MULTISTORE

I have error 500 if I want to change header logo for an other shop

It's a REGRESSION

Expected behavior

no error 500

Steps to reproduce

1. Enable multistore in shop parameters > general
2. Advanced parameters > multistore > add a new shop
3. Set an URL for this shop
4. BO > Design > Theme & logo
5. Choose Shop 1
6. Change header logo = OK
7. Choose shop 2
8. Check Header logo
9. Change header logo
10. Save
11. Error

PrestaShop version(s) where the bug happened

9.0.0 RC1 build 51