Sidebar problem after uninstall

Hi,
I want to try free version then i install it but can’t make it working then i uninstall it and now i can’t make new sidebar anymore and i lose smart side bar effect from my theme, newspaper.

Then i want to know if your plugin delete other file in uninstall or if it rewrite something or if i need to delete another file who stay in my file after uninstall for clean my website from your dangerous plugin?