Lets Encrypt not working

So I tried removing the SSL cert for my domain and readding it as my SSL shows as an insecure connection when I check the cert details I see this

The certificate is only valid for the following names: azmechanic.com, mail.azmechanic.com, http://www.azmechanic.comDetails
The hostname in the website’s security certificate differs from the website you are trying to visit.Error Code: DLG_FLAGS_SEC_CERT_CN_INVALID

yet under my check SSL it shows  techiemike.com AutoSSL Domain ValidatedExpires on February 11, 2018. The certificate will renew via AutoSSL.      mail.techiemike.com AutoSSL Domain ValidatedExpires on February 11, 2018. The certificate will renew via AutoSSL.      http://www.techiemike.com AutoSSL Domain ValidatedExpires on February 11, 2018. The certificate will renew via AutoSSL when the parent domain “techiemike.com” renews.

I have tried different browsers etc cleared cache still same problem?
 
please advise