Box width defaults to 600px

I have the box width set to 100% in the settings, and even tried overriding it in the shortcode to 100%, but the box keeps showing up with a fixed 600px width, how can I correct this?

here’s the html code displayed in the inspector (I removed the src url un purpose):

<div id="wpdevar_comment_1" style="width:100%;text-align:left;">
	<span style="padding: 10px;font-size:22px;font-family:Times New Roman,Times,Georgia,serif;color:#000000;"></span>
	<div class="fb-comments fb_iframe_widget fb_iframe_widget_fluid" data-href="" data-numposts="10" data-width="100%" style="display:block;" fb-xfbml-state="rendered">
		<span style="height: 242px;">
			<iframe id="f14d488024" name="f24b1d65e" scrolling="no" title="Facebook Social Plugin" class="fb_ltr fb_iframe_widget_lift" src="" style="border: none; overflow: hidden; height: 242px; width: 100%;"></iframe>
		</span>
	</div>
</div>

and this is the shortcode I used (no url in order to use the one of the current page):

[wpdevart_facebook_comment curent_url="" width="100%"]

https://ww.wp.xz.cn/plugins/comments-from-facebook/