When Using DuckDuckGo In Safari Why Are Many Of My Searches Are Blocked?

I am using DDG for Safari on my iPad and many times I get “cannot be opened because Ad Content blocker won’t open this page”. I was just on Etsy and most shops were blocked until I changed to Yahoo search engine. I love concept behind DDG. Is there a way to fix this? There doesn’t seem to be a way to contact them?
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Jes Sildar