Re: Can't call method "click" on an undefined value

In short, it sounds like you have three problems, one of which hasn't been mentioned yet.

There's no FORM element, and it sounds like WWW::Mechanize needs one. That's not even valid HTML.
->click($bttn_val) should probably be ->click_button(value => $bttn_val)
WWW::Mechanize can't process JavaScript.

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