Error when customer’s name includes a slash mark.

Customer’s name including slash mark `/` return an error, Order action marked as "Error", Status as "not imported".

```
2022-03-15 16:02:51 - [Import] order 220315V176426772: import order failed - La propriété LengowCustomer->lastname n'est pas valide.
```

Tested with Veepee Marketplace synchronization.