Can't get seo urls work correctly

Hello everyone!

I have a task to setup seo friendly urls on a web-site that was installed by someone else. I have this template installed: https://themeforest.net/item/sellya-mul ... me/3431353

There is a blog manager which gives me this: http://1001коляска.рф/index.php?route=b ... egory/home

I've tried a lot of suggestions from different posts but none of them work. The system is incredibly complicated (I am pretty new to it). Can anyone tell me what can be done here?

Thanks in advance.

well, the OC System is not so complicated, but you have chosen a
very complicated Custom Theme Extension, adding a lot of custom things,
functions, and options. You should therefore better contact the Theme Creator,
if you really expect this to work, as you plan.
Good Luck !
Ernie