The issue is that
https://www.bayrakcibursa.com returns an HTTP 403 status code because WWB, unlike a web browser, only requests the page headers instead of downloading the full page.
Technically, this could be resolved by downloading the complete page for every URL, but that would make the link-checking process significantly slower.
So, this behavior is caused by restrictions on the website's server rather than an issue with WWB itself. For comparison, if you try
https://www.wysiwygwebbuilder.com, the link check should work as expected.