SSL Will not install succesfully

Step 1
First we should check the dns file of the domain and ensure that the nameservers are correct and registered for the particular domain
www IN A XX.XX.XXX.XX
mail 14400 IN CNAME domain.
webmail 14400 IN A XX.XX.XXX.XX
domain. CAA 0 issue "letsencrypt.org"
domain. CAA 0 issuewild "letsencrypt.org"

Step 2
It is very important to fix domain folder permissions using the CWP7 method

Step 3
We remove all VHOST from the domain

Step 4
Restart CWP7 services and DNS

Step 5
Next we should set temporarly an apache vhost with low php version (5.4)

Step 6
Reissue the certificate selecting only the domain and we ensure www and main domain has ssl

Step 7
Last step is to issue a certificate for mail, webmail, ftp, cpanel