Multi-Language Experiences Module 2 Module Assessment

Hi there,

I am working on step 14

but /es gives me 404 error - screenshot
maybe I did not do step 9 correctly??
but I dont see option of ‘Reuild’ - screenshot

Kindly help how I can fix this!

Now my preview is dead

Created new preview but now I get 404 even without /es in the URL.

also build is showing error.

Please let me know how I can fix this.
Thank you,