hi,  i used this code to handle this pop up.

def modalDialog(flg)
  begin
    #Watir::wait($browser.modal_dialog().enabled)
    if(flg ==1)
      puts "modalDialog called"
      errLog=$browser.modal_dialog().td(:class,"PopupMsgTitleMenu").text
      $browser.modal_dialog().table(:id,"OK").click

    else
      $browser.modal_dialog().table(:id,"OK").click
      errLog =""
    end

    return errLog
  rescue Exception => e
    $logger.error " modalDialog - #{e.message}"
  end
end


Thank you

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