could you help me please. When activating the spanish language, the friendly url is distorted.

Instead of showing the title of the ad, it shows location and shows 2 times the category.

i need help. i am testing on localhost.

Check your permalink settings.

it´s some error of the osclass core. because in english it does not generate any error even when adding, city and region in the url of the details of an ad.

this screenshot is from the demo in russian and it generates the same error.

Oh I see.
No error.
Item title was not filled in selected locale - empty.
So instead of messing locales, osclass generates url using category/country/region/city

but does it affect the seo or is it ok.

Any way to fix or improve that?

It's already that improvement.

so this is an improvement? but it affects the seo.

or how could it be implemented so that it does not generate that data.

Is for Seo better to mix different locales?