DOCTYPE error persists even when adding <!DOCTYPE html> to beginning - GoDaddy Website Builder

Spreadshop
#1

I am attempting to embed the shop in my website using GoDaddy’s website builder, and the HTML tool. Here is my code being used:

verticalthoughts

I still receive the error saying “Could not properly render your Spreadshop! This HTML document does not specify a doctype…etc.”

What should I do about this.

#2

mhh @Foxal did you try to embedd the shop by using this URL ?
Or did you use our embedd code from Shop Admin, under Advanced Settings?

We´d need some more information, e.g. the complete code from your site.

Best,
Thomas

#3