Content type test did not run. Be sure to define a ‘content-type’ header.
I am primarily struggling with the

Your server returned an error status code (>= 400)

Fault, but also the two latters errors.

What could be the issue here?

I am primarily struggling with the

Your server returned an error status code (>= 400)

Fault, but also the two latters errors.

What could be the issue here?