[swift]

Could you please let me know what is ID of the page, where your Ecwid is installed?

In order to find it, log into your admin area.
Go to page where your Ecwid is installed.
Take a look at the address bar.
You will see the part like post.php?post=NN. NN is ID of the page.

Also, please provide me with content of this page, if possible.

I will try to look deeper into the problem.