that's normal. Checking your domain you have one certificate ( https://check-your-website.server-daten.de/?q=londonwebfactory.com ):
CN=cfroofingltd.co.uk
28.11.2019
26.02.2020
expires in 89 days cfroofingltd.co.uk, greensleevescare.co.uk, homefrontsurrey.com,
learningpig.com, london-drain-cleaning.com, londondrainsdirect.com, londonwebfactory.com,
londonyogafactory.co.uk, lyntonhotellondon.com, new.londonwebfactory.com,
sparescalculator.com, tools.sparescalculator.com, wimbledonglass.com,
www.cfroofingltd.co.uk, www.greensleevescare.co.uk, www.homefrontsurrey.com,
www.learningpig.com, www.london-drain-cleaning.com, www.londondrainsdirect.com,
www.londonwebfactory.com, www.londonyogafactory.co.uk, www.lyntonhotellondon.com,
www.sparescalculator.com, www.wimbledonglass.com -
24 entries
with 24 domain names. Only one domain name can be used as CN -> that's the visible entry.
So 23 domains have the "wrong" name --> it's not really a problem.
Ignore it. Or you have to create one certificate per domain name. It's not a security problem.