@Ladybug076 See the below thread reply post from @Gary where the Gmail pop server should actually be “pop.gmail.com” where you have “pop.googlemail.com”. The Gmail Support page verifies that setting as well. So give that a go.
https://forum.emclient.com/t/proplems-creating-gmail-pop-account/42584/7
(Garys Post)
One thing to check when using GMail POP, is the server settings. I find that eM Client gets this wrong every time.
host: pop.gmail.com
port: 995
security policy: Use SSL/TLS on special port (legacy)
host: smtp.gmail.com
port: 465
security policy: Use SSL/TLS on special port (legacy)