Hello @Eniel,
Please submit a new topic on our forum – https://www.8theme.com/forums/xstore-wordpress-support-forum/
Have you cleared a browser cache?
Provide screenshots or video of what exactly and where did you change and provide temporary wp-admin access, so we can take a closer look.
You can use Lightshot screenshot or Gyazo tool to share links to your screenshots.
Create an account via Dashboard (Users > Add new) with administrator role http://prntscr.com/s3rc9m > provide us with username and password via the Private Content area http://prntscr.com/s5mao7 You can use any email for it.
Regards