Lost access to site after changing url structure

Question

I changed url structure in my administration panel and after saving it, my site does not load up. Nor do I have access to the admin panel to turn url structure back to the last working option.

Could anyone help please?

Thank you.

Comments

after checking the site with multiple devices I realized that this has been a temporary problem (perhaps a bug or a cache problem for an hour). The issue now is resolved. But I still look for any direct method to change url structures if there is any available.