Perhaps this article will help.
It looks like you have fixed it now. The link has the correct URL.
<p><a title="Tutoring Solutions" href="https://tutoring.solutions/"><img class="pull-left" src="/images/logo.png" alt="" /></a></p>
Because I’m a genius Mozart of web design and Joomla
I solved it myself by going to PHPMyAdmin. There I chose my site’s db. Went to SEARCH. Ran a search for “logo” in all tables. Found it in table “modules”. Edited the info there and saved it. That’s it! Before all that, I grepped in Ubuntu terminal window all my site’s folders and didn’t find it there… with this command:
xxx@xxx:~$ sudo grep -Ril “repetit.moscow” /var/www/tutoring.solutions/public_html