Several Google problems …

I seem to have a number of unexplained google problems:

1: multiple indexes in google show:
(not mobile ready, even if I have a mobile theme …)
SEMrush

2: I have a number of structured data errors, even if
I am not aware of the site having structured data ….

3: google seems to massively explore this type of
loginfacebook redirection links via the administrator login URL …

4: Google seems to crawl URLs with indefinite …

5: I have a number of sitemap errors saying that the robots.txt file
block or block this, even if there is nothing
in robots.txt ….

any ideas on why I have so many google problems?