My install button in the launcher does not work - nothing comes up

My install button in the launcher does not work - nothing comes up. I read through FAQs on this hub, but nothing relates to my case. Because not only mine fails on working but also short message pops up saying “please wait.”
I already installed it with a permission as an administrator but it still doesn’t work. My mac is 2.4GHz intel core i5, 16ram, and the graphic card is Intel Iris Plus Graphics 655 1536 MB. Is there anyone who had this problem and solved? Proxy and internet connection are all fine in my case.
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