how insert category with new language ?

[faustf]

Good morning, everyone. Sorry, I'm a bit of a beginner with PrestaShop 8.2.0. I have the default theme installed, and I've added the Italian language. Now, I’d like to go to **Catalog → Categories** to edit the categories. For example, I want to change *Clothes* to *Marchi*, adding the Italian description and modifying the English one as well, while also updating the category's cover image. 

However, whenever I do all this and press save, it always gives me the following error:

I also tried creating a new category, but I keep encountering the same issue. Is there a way to figure out why this is happening? Thank you, best regards!

[faustf]

i find a problem oprestashop is not fully capable with firefox  fu.....   thanks at  all  with chrome now  work:D