Avoid issue while deploying WolframAlpha form in the cloud?

Questions
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1

Hello, my name is Christian from Poland, I am not a developer.

I have a question:

Why does:

FormFunction[{"x" -> "String"}, WolframAlpha[#x] &,"PNG"]

…work fine in my Wolfram notebook, but when I try to deploy it in the Wolfram Cloud:

CloudPublish[FormFunction[{"x" -> "String"},WolframAlpha[#x]&, "PNG"]]

…it doesn’t work, with $Failed message as a result?