ERROR: Protocol “’https” not supported or disabled in libcurl

So, I downloaded RDP Wiki Embed, in an attempt to embed a Wikipedia page into my site so to not have to manually update details myself whenever the page gets updated. I was hoping to have my own format of the page infomration, which the plugin seemed to offer. When I put the [rdp-wiki-embed url=’https://en.wikipedia.org’] in and update the Wikipedia page, which contains https rather than http as shown in the example they use, after I save the post and preview it, it shows the error in the title: ERROR: Protocol “’https” not supported or disabled in libcurl

What does this mean and how do I fix it? Is there a working plugin that can do this?