As I can see, you are using Elelementor. Enable the Elelementor for static blocks – https://prnt.sc/wa6va4 , then provide us with temporary wp-admin access. We will add demo footer on your site, and you will be able to change the content of it depends on your needs.
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.
