Traceback (most recent call last):
        5: from test_x_rates.rb:423:in `<main>'
        4: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/watir-6.16.5/lib/watir/elements/element.rb:113:in `text'
        3: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/watir-6.16.5/lib/watir/elements/element.rb:787:in `element_call'
        2: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/watir-6.16.5/lib/watir/elements/element.rb:791:in `rescue in element_call'
        1: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/watir-6.16.5/lib/watir/elements/element.rb:787:in `element_call'
C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/watir-6.16.5/lib/watir/elements/element.rb:798:in `rescue in element_call': timed out after 30 seconds, waiting for #<Watir::HTMLElement: located: false; {:currency=>"BTC"}> to be located; Maybe look in an iframe?; Watir treated ["currency"] as a non-HTML compliant attribute, ensure that was intended (Watir::Exception::UnknownObjectException)