I can help, this is not only a seo problem but also a problem in the site code. Perhaps there is a redirect. To solve SEO problems, you must also use the website backlink checker service to check the website backlinks. This is in my experience the best service, the most convenient to use and the most accurate. Thanks to it, you can quickly and seamlessly analyze the link mass of your site or your competitor's web resource.

Dear sir
Can you be more specific about your problem?
Thank you