Correct the google search appearance of my Magento store

Hi, for some reason our 6 main categories appear in Google search with the wrong title, although in Magento, we created titles with SEO keywords. But unfortunately the category titles appear with "[login to view URL]" instead of our keywords. This must be corrected, there should be no [login to view URL] in the title. Also our main entry does not appear in Google. So we need somebody with deep knowledge of Magento and Google requirements.