Poll Settings Not working

For some reason, I can’t change the settings in when I create a poll
“How many responses are allowed”, “Closing the poll” and “Show results’ won’t let me pull down the selector. Everything else working great, wanted to buy the product, but don’t know if I should if it’s not going to work with my site. Any help would be appreciated. I tried to access your support on your website, but was unable to post or find anything related.

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