Google search is using an indirect link in order to get stats on the link, but getting it wrong. Bing uses direct links.
Do you have a Google Webmaster account? No charge.
https://www.google.com/intl/en/webmasters/
Next you need a sitemap. I use Yoast SEO but there are other plugins that can do it. After loading this plugin, at Admin page > SEO > XML Sitemaps > XML Sitemap button, you can get the url of your sitemap. Note that this is a dynamic sitemap, created on demand, and not a file like it used to be in the old days. Submit this url to the submit sitemap option in your Google Webmasters account. Google will recrawl your site, hopefully in a few hours.
If this doesn’t fix the problem, some users have said the problem comes from .htaccess. Can’t see this doing it myself. But either post it here:
https://pastebin.com/
for us to look at, or rename it temporarily to put it out of action, and create a new one by going to Admin page > Settings > Permalinks and click “Save changes” twice. Again, you would have to wait for a Google recrawl or ask for one in your Webmasters account. Its just there could be something in it that you need, so if something else breaks, rename the old one back again.