No i have currently 3 certificates. (www and 2 subdomains). But i have tried the certificate for the 3th subdomain serveral times. But it fails by a other error (Webroot installation failed)
I have found the issue: I have a .htacces redirect in the root directory. (rewrite rule) . i have now temporary disabled it but i now run into limit.
Conclusio - currently i have only 3 cers in my “live” directory.