Problems SSL Certificate Renewal

I am new to Univention and need some help. My Univention server 4.4-8 ssl certificate has expired. I have renew the CA Root and now attempting to renew all computer certificates with the following command:
for i in *".$domainname"; do univention-certificate renew -name “$i” -days “$(ucr get ssl/default/days)”; done

I keep getting the error : bash: syntax error near unexpected token ‘do’

Please help

The variable $domainname might be empty.
You will find all domain names in /etc/univention/letsencrypt/domains